This is a list of articles about numbers (not about numerals). A number is an abstract entity that represents a count or measurement. ... A numeral is a symbol or group of symbols that represents a number. ...

Rational numbers

In mathematics, a rational number (commonly called a fraction) is a ratio or quotient of two integers, usually written as the vulgar fraction a/b, where b is not zero. ...

Notable rational numbers

Natural numbers

In mathematics, a natural number can mean either an element of the set {1, 2, 3, ...} (i. ... 0 (zero) is both a number and a numerical digit used to represent that number in numerals. ... Look up one in Wiktionary, the free dictionary. ... “II” redirects here. ... This article discusses the number three. ... This article discusses the number Four. ... Look up five in Wiktionary, the free dictionary. ... Look up six in Wiktionary, the free dictionary. ... Seven Days of Creation - 1765 book, title page Seven (7) is the sixth successor of one (1). ... Look up eight in Wiktionary, the free dictionary. ... Look up nine in Wiktionary, the free dictionary. ... 10 (ten) is an even natural number following 9 and preceding 11. ... 11 (eleven) is the natural number following 10 and preceding 12. ... Look up twelve in Wiktionary, the free dictionary. ... 13 (thirteen) is the natural number following 12 and preceding 14. ... 14 (fourteen) is the natural number following 13 and preceding 15. ... 15 (fifteen) is the natural number following 14 and preceding 16. ... 16 (sixteen) is the natural number following 15 and preceding 17. ... 17 (seventeen) is the natural number following 16 and preceding 18. ... 18 (eighteen) is the natural number following 17 and preceding 19. ... 19 (nineteen) is the natural number following 18 and preceding 20. ... 20 (twenty) is the natural number following 19 and preceding 21. ... 21 (twenty-one) is the natural number following 20 and preceding 22. ... 22 (twenty-two) is the natural number following 21 and preceding 23. ... This article is about the number 23. ... 24 (twenty-four) is the natural number following 23 and preceding 25. ... 25 (twenty-five) is the natural number following 24 and preceding 26. ... 26 (twenty-six) is the natural number following 25 and preceding 27. ... 27 (twenty-seven) is the natural number following 26 and preceding 28. ... 28 (twenty-eight) is the natural number following 27 and preceding 29. ... 29 (twenty-nine) is the natural number following 28 and preceding 30. ... 30 (thirty) is the natural number following 29 and preceding 31. ... 31 (thirty-one) is the natural number following 30 and preceding 32. ... 32 (thirty-two) is the natural number following 31 and preceding 33. ... 33 is the natural number following 32 and preceding 34. ... 34 (thirty-four) is the natural number following 33 and preceding 35. ... 35 (thirty-five) is the natural number following 34 and preceding 36. ... 36 (thirty-six) is the natural number following 35 and preceding 37. ... 37 (thirty-seven) is the natural number following 36 and preceding 38. ... 38 (thirty-eight) is the natural number following 37 and preceding 39. ... 39 (thirty-nine) is the natural number following 38 and preceding 40. ... 40 (forty) is the natural number following 39 and preceding 41. ... 41 (forty-one) is the natural number following 40 and preceding 42. ... Look up forty-two in Wiktionary, the free dictionary. ... 43 (forty-three) is the natural number following 42 and preceding 44. ... 44 (forty-four) is the natural number following 43 and preceding 45. ... 45 (forty-five) is the natural number following 43 and followed by 47. ... 46 is the natural number following 45 and preceding 47. ... 47 (forty-seven) is the natural number following 46 and followed by 48. ... 48 (forty-eight) is the natural number following 47 and preceding 49. ... 49 (forty-nine) is the natural number following 48 and preceding 50. ... 50 (fifty) is the number following 49 and preceding 51. ... 51 (fifty-one) is the natural number 51 following 50 and preceding 52. ... 52 (fifty-two) is the natural number following 51 and preceding 53. ... 53 (fifty-three) is the natural number following 52 and preceding 54. ... 54 (fifty-four) is the natural number following 53 and preceding 55. ... 55 is the natural number following 54 and preceding 56. ... 56 (fifty-six) is the natural number following 55 and preceding 57. ... 57 (fifty-seven) is the natural number following 56 and preceding 58. ... 58 is the natural number following 57 and preceding 59. ... 59 (fifty-nine) is the natural number following 58 and preceding 60. ... 60 (sixty) is the natural number following 59 and preceding 61. ... 61 (sixty-one) is the natural number following 60 and preceding 62. ... 62 (sixty-two) is a natural number following 61 and preceding 63. ... Sixty-three is a natural number following 62 and preceding 64. ... 64 (sixty-four) is the natural number following 63 and preceding 65. ... 65 is the natural number following 64 and preceding 66. ... 66 is the natural number following 65 and preceding 67. ... 67 is the natural number following 66 and preceding 68. ... 68 (sixty-eight) is the natural number following 67 and preceding 69 // Sixty-eight is a nontotient. ... 69 (sixty-nine) is the natural number following 68 and preceding 70. ... Look up seventy in Wiktionary, the free dictionary. ... 71 is the natural number following 70 and preceding 72. ... 72 is the natural number following 71 and preceding 73. ... 73 (seventy-three) is the natural number following 72 and preceding 74. ... 74 (seventy-four) is the natural number following 73 and preceding 75. ... 75 (seventy-five) is the natural number following 74 and preceding 76. ... 76 is the natural number following 75 and preceding 77. ... 77 (seventy-seven) is the natural number following 76 and preceding 78. ... 78 (seventy-eight) is the natural number following 77 and followed by 79. ... 79 (seventy-nine) is the natural number following 78 and preceding 80. ... 80 (eighty) is the natural number following 79 and preceding 81. ... 81 is the natural number following 80 and preceding 82. ... 82 is the natural number following 81 and preceding 83. ... 83 (eighty-three) is the natural number following 82 and preceding 84. ... 84 (eighty-four) is the natural number following 83 and preceding 85. ... 85 is the natural number following 84 and preceding 86. ... 86 (eighty-six) is the natural number following 85 and preceding 87. ... 87 (eighty-seven) is the natural number following 86 and preceding 88. ... 88 (eighty-eight) is the natural number following 87 and preceding 89. ... 89 (eighty-nine) is the natural number following 88 and preceding 90. ... 90 (ninety) is the natural number preceded by 89 and followed by 91. ... 91 (ninety-one) is the natural number following 90 and preceding 92. ... 92 is the natural number following 91 and preceding 93. ... 93 is the natural number following 92 and preceding 94. ... 94 (ninety-four) is the natural number following 93 and preceding 95. ... 95 is the natural number following 94 and preceding 96. ... 96 is the natural number following 95 and preceding 97. ... 97 is the natural number following 96 and preceding 98. ... 98 is the natural number following 97 and preceding 99. ... 99 (ninety-nine) is the natural number following 98 and preceding 100. ... 100 (one hundred) (the Roman numeral is C for centum) is the natural number following 99 and preceding 101. ... 101 (one hundred [and] one) is the natural number following 100 and preceding 102. ... 102 (one hundred two) is the natural number following 101 and preceding 103. ... 103 is the natural number following 102 and preceding 104. ... 104 is the natural number following 103 and preceding 105. ... 105 (one hundred [and] five) is the natural number following 104 and preceding 106. ... 106 is the natural number following 105 and preceding 107. ... 107 is the natural number following 106 and preceding 108. ... 108 is the natural number following 107 and preceding 109. ... 109 is the natural number following 108 and preceding 110. ... 110 (one hundred [and] ten) is the natural number following 109 and preceding 111. ... 111 is the natural number following 110 and preceding 112. ... 112 is the natural number following 111 and preceding 113. ... 113 is the natural number following 112 and preceding 114. ... 114 (one hundred and fourteen) is the natural number following 113 and preceding 115. ... 115 is the natural number following 114 and preceding 116. ... 116 is the natural number following 115 and preceding 117. ... 117 is the natural number following 116 and preceding 118. ... 118 is the natural number following 117 and preceding 119. ... 119 is the natural number following 118 and preceding 120. ... 120 (one hundred twenty in American English; one hundred and twenty in British English) is the natural number following 119 and preceding 121. ... 121 is the natural number following 120 and preceding 122. ... 122 is the natural number following 121 and preceding 123. ... 123 is the natural number following 122 and preceding 124. ... One hundred twenty-four (124, CXXIV) is the natural number following 123 and preceding 125. ... 125 is the natural number following 124 and preceding 126. ... 126 is the natural number following 125 and preceding 127. ... 127 is the natural number following 126 and preceding 128. ... 128 is the natural number following 127 and preceding 129. ... 129 is the natural number following 128 and preceding 130. ... 130 is the natural number following 129 and preceding 131. ... 131 is the natural number following 130 and preceding 132. ... 132 is the natural number following 131 and preceding 133. ... 133 is the natural number following 132 and preceding 134. ... 134 is the number equal to 100 + 30 + 4. ... In mathematics 135 is the natural number following 134 and preceding 136. ... 136 (one hundred thirty six) is the natural number following 135 and preceding 137. ... 137 is the natural number following 136 and preceding 138. ... 138 (one hundred [and] thirty-eight) is the natural number following 137 but before 139. ... 139 (One hundred thirty-nine) is the natural number following 138 and preceding 140. ... 140 is the natural number following 139 and preceding 141. ... 141 is the natural number following 140 and preceding 142. ... 142 (one hundred forty-two, also one hundred and forty-two) is the natural number following 141 and preceding 143. ... 143 is the natural number following 142 and preceding 144. ... 144 is the natural number following 143 and preceding 145. ... 145 is the natural number following 144 and preceding 146. ... 146 (one hundred forty-six) is the natural number following 145 and preceding 147. ... 147 is the natural number following 146 and preceding 148. ... 148 is the natural number following 147 and preceding 149. ... 149 is the natural number between 148 and 150. ... 150 is the natural number following 149 and preceding 151. ... 151 is a natural number. ... 152 (one hundred and fifty-two) is the natural number following 151 and preceding 153. ... One hundred fifty-three is the natural number following one hundred fifty-two and preceding one hundred fifty-four. ... 154 is the natural number following one hundred fifty-three and preceding one hundred fifty-six ... (Redirected from 155 (number)) 150 is the natural number following 149 and preceding 151. ... 156 is the number equal to 100 + 50 + 6. ... 157 is the number equal to 100 + 50 + 7, following 156 and preceding 158. ... 158 is a even whole number before 159 and after 157. ... Cardinal one hundred fifty-nine Ordinal 159th (one hundred fifty-ninth) Factorization Divisors 3, 53 Roman numeral CLIX Binary 10111111 Hexadecimal 9F 159 is a natural number following 158 and preceding 160. ... 160 is the natural number following one hundred fifty-nine and preceding one hundred sixty-one. ... Cardinal one hundred and sixty-one Ordinal 161st (one hundred and sixty-first) Factorization Divisors 7, 23 Roman numeral CLXI Binary 10100001 Hexadecimal A1 161 is an odd natural number between 160 and 162. ... Cardinal one hundred and sixty-two Ordinal 162nd (one hundred and sixty-second) Factorization Divisors 1, 2, 9, 81 Roman numeral CLXII Binary 10100010 Hexadecimal A2 162 is an even natural number between 161 and 163. ... 163 is the natural number following one hundred sixty-two and preceding one hundred sixty-four. ... 164 (one hundred (and) sixty-four) is the natural number following 163 and preceding 165. ... 160 is the natural number following one hundred fifty-nine and preceding one hundred sixty-one. ... 166 is the natural number following one hundred (and) sixty-five and preceding one hundred (and) sixty-seven. ... 167 is the natural number following 166 and preceding 168. ... 168 is the natural number following 167 and preceding 169. ... 169 is the natural number following one hundred sixty-eight and preceding one hundred seventy. ... 170 is the natural number following 169 and preceding 171. ... Cardinal one hundred and seventy-one Ordinal 171st (one hundred and seventy-first) Factorization Divisors 1, 3, 9, 19, 57, 171 Roman numeral CLXXI Binary 10101011 Hexadecimal AB 171 is an odd natural number between 170 and 172. ... 172 (one hundred and seventy-two) is the natural number following 171 and preceding 173. ... 173 is the natural number between 172 and 174. ... Cardinal one hundred and seventy-four Ordinal 174th (one hundred and seventy-fourth) Factorization Divisors 1, 2, 3, 6, 29, 58, 87, 174 Roman numeral CLXXIV Binary 10101110 Hexadecimal AE 174 is an even natural number between 173 and 175. ... 175 is the natural number following 174 and preceding 176. ... Cardinal one hundred and seventy-six Ordinal 176th (one hundred and seventy-sixth) Factorization Divisors 1, 2, 4, 8, 11, 16, 22, 44, 88, 176 Roman numeral CLXXVI Binary 10110000 Hexadecimal B0 176 is an even natural number between 175 and 177. ... Cardinal one hundred and seventy-seven Ordinal 176th (one hundred and seventy-seventh) Factorization Divisors 1, 3, 59, 177 Roman numeral CLXXVII Binary 10110001 Hexadecimal B1 177 is an odd natural number between 176 and 178. ... Cardinal one hundred and seventy-eight Ordinal 178th (one hundred and seventy-eighth) Factorization Divisors 1, 2, 89, 178 Roman numeral CLXXVIII Binary 10110010 Hexadecimal B2 178 is an even natural number between 177 and 179. ... 179 is the natural number between 178 and 180. ... 180 (one hundred eighty in American English, one hundred and eighty in British English) is the natural number following 179 and preceding 181. ... 181 is the natural number between 180 and 182. ... 182 is the natural number between 181 and 183. ... Cardinal One hundred [and] eighty-three Ordinal 183rd Factorization Roman numeral CLXXXIII Binary 10110111 Hexadecimal B7 183 is the natural number following 182 and preceding 184. ... Cardinal One hundred [and] eighty-four Ordinal 184th Factorization Roman numeral CLXXXIV Binary 10111000 Hexadecimal B8 184 is the natural number following 183 and preceding 185. ... 185 (Roman: CLXXXV) is the number equal to 37 times 5. ... 186 is the natural number following 185 and preceding 187. ... Cardinal One hundred [and] eighty-seven Ordinal 187th Factorization Roman numeral CLXXXVII Binary 10111011 Hexadecimal BB 187 is the natural number following 186 and preceding 188. ... Cardinal One hundred [and] eighty-eight Ordinal 188th Factorization Roman numeral CLXXXVIII Binary 10111100 Hexadecimal BC 188 is the natural number following 187 and preceding 189. ... Cardinal One hundred [and] eighty-nine Ordinal 189th Factorization Roman numeral CLXXXIX Binary 10111101 Hexadecimal BD 189 is the natural number following 188 and preceding 190. ... 190 is the natural number following one hundred eighty-nine and preceding one hundred ninety-one. ... 191 is the natural number between 190 and 192. ... 190 is the natural number following one hundred eighty-nine and preceding one hundred ninety-one. ... 193 is the natural number between 192 and 194. ... 194 is the natural number following 193 and followed by 195. ... 195 is the natural number following one hundred ninety-four and preceding one hundred ninety-six. ... 196 is a natural number that is equal to 100+90+6. ... 197 is the natural number between 196 and 198. ... 198 is the natural number between 197 and 199. ... 199 is the natural number between 198 and 200. ... 200 is the natural number following 199 and preceding 201. ... 210 is the natural number following 209 and preceding 211. ... 220 (two hundred [and] twenty) is the natural number following 219 and preceding 221. ... 230 (two hundred [and] thirty) is the natural number following 229 and preceding 231. ... This page is a candidate for speedy deletion, because: it is patent nonsense. ... 250 is the natural number following 249 and preceding 251. ... 260 is the magic constant of nxn magic square and n-Queens Problem for n = 8, the size of an actual chess board. ... 270 is the natural number following 269 and preceding 271. ... 280 is the natural number after 279 and before 281. ... 290 is the natural number after 289 and before 291. ... This article is about the number 300. ... Four hundred is the natural number following three hundred ninety-nine and preceding four hundred one. ... Five hundred is the natural number following four hundred ninety-nine and preceding five hundred one. ... Six hundred is the natural number following five and hundred ninety-nine and preceding six hundred and one. ... 700 (seven hundred) is the natural number following 699（six hundred ninety-nine） and preceding 701（seven hundred one）. Cardinal Seven hundred Ordinal 700th Factorization Roman numeral DCC Binary 1010111100 Duodecimal 4A4 Hexadecimal 2BC Vigesimal 1F0 It is the sum of four consecutive primes (167 + 173 + 179 + 181). ... 800 (eight hundred) is the natural number following 799 and preceding 801. ... Nine hundred is the natural number following eight hundred ninety-nine and preceding nine hundred one. ... Cardinal 1000 one thousand Ordinal 1000th Numeral system Factorization Prime Divisor(s) Roman numeral Unicode symbol(s) , , Greek Prefix chilia Latin Prefix milli Binary 1111101000 Octal 1750 Duodecimal 6B4 Hexadecimal 3E8 1000 (one thousand) is the natural number following 999 and preceding 1001. ... 2000 (two thousand) is the natural number following 1999 and preceding 2001. ... Three thousand (3000) is the natural number following 2999 and preceding 3001. ... Four thousand (4000) is the natural number following 3999 and preceding 4001. ... Five thousand (5000) is the natural number following 4999 and preceding 5001. ... Six thousand (6000) is the natural number following 5999 and preceding 6001. ... 7000 is the natural number following 6999 and preceding 7001. ... 8000 (eight thousand) is the natural number following 7999 and preceding 8001. ... 9000 (nine thousand) is the natural number following 8999 and preceding 9001 and is far lower than Gokus power level according to the official Dragon Ball Z episode _________________ ISO 9000 is the ISOs standard for Quality Management System in production environments 9001 - ISO 9001 is part of... Look up ten thousand in Wiktionary, the free dictionary. ... One hundred thousand (100000) is the natural number following 99999 and preceding 100001. ... One million (1,000,000), or one thousand thousand, is the natural number following 999,999 and preceding 1,000,001. ... Ten million (10,000,000) is the natural number following 9999999 and preceding 10000001. ... One hundred million (100,000,000) is the natural number following 99999999 and preceding 100000001. ... This list compares various sizes of positive numbers, including counts of things, dimensionless numbers and probabilities. ...

Powers of ten

See: Orders of magnitude (numbers)

This list compares various sizes of positive numbers, including counts of things, dimensionless numbers and probabilities. ...

Integers

The integers are commonly denoted by the above symbol. ...

Notable integers

Other numbers that are notable for their mathematical properties or cultural meanings include:

• -40
• -1
• 211
• 221
• 222
• 223
• 227
• 228
• 229
• 233
• 235
• 239
• 241
• 242
• 251
• 255
• 256
• 257
• 263
• 269
• 273
• 284
• 360
• 420
• 451
• 496
• 555
• 666
• 720
• 786
• 911
• 1001
• 1089
• 1337
• 1729
• 3600
• 6174
• 7744
• 8128
• 69105
• 142857
• 6000000

Minus forty is the unique temperature (in degrees) at which the Celsius and Fahrenheit scales read the same; it is often referred to as 40 below. ... In mathematics, −1 is the integer greater than negative two (−2) and less than 0. ... 211 is the natural number between 210 and 212. ... 221 (two hundred [and] twenty-one) is the natural number following 220 and preceding 222. ... 222 (two hundred [and] twenty-two) is the natural number following 221 and preceding 223. ... 223 is the natural number between 222 and 224. ... 227 is the natural number between 226 and 228. ... 228 is the natural number between 227 and 229. ... 229 is the natural number between 228 and 230. ... 233 is the natural number between 232 and 234. ... 235 is the integer after 234 and before 236. ... 239 (two hundred [and] thirty-nine) is the natural number following 238 and preceding 240. ... 241 is the natural number between 240 and 242. ... 242 is the natural number following 241 and preceding 243. ... 251 is the natural number between 250 and 252. ... 255 (two hundred [and] fifty-five, CCLV) is the natural number following 254 and preceding 256. ... 256 (two hundred [and] fifty-six, CCLVI) is the natural number following 255 and preceding 257. ... 257 is the natural number between 256 and 258. ... 263 is the natural number between 262 and 264. ... 269 is the natural number between 268 and 270. ... Two hundred seventy-three (273, CCLXXIII) is a natural number that comes after 272 and before 274. ... Two hundred eighty-four (284, CCLXXXIV) is the natural number following 283 and preceding 285. ... 360（Three hundred sixty） is the natural number following 359 and preceding 361. ... 420 is the natural number following 419 and preceding 421. ... 451 (Four hundred and fifty-one) is the natural number following 450 and preceding 452. ... Four hundred and ninety-six is the natural number following four hundred and ninety-five and preceding four hundred and ninety-seven. ... 555 is the natural number following 554 and preceding 556. ... 666 is the natural number following 665 and preceding 667. ... Seven hundred twenty is the natural number following 719 and preceding 721. ... 786 is the integer coming after 785 and before 787. ... 911 (nine hundred eleven) is the number following 910 and preceding 912. ... 1001 is the natural number preceding 1002 and following 1000. ... 1089 is the number after 1088 and before 1090. ... This article does not adequately cite its references or sources. ... 1729 Cardinal One thousand seven hundred [and] twenty-nine Ordinal 1729th Factorization Divisors 7, 13, 19, 91, 133, 247 Roman numeral MDCCXXIX Binary 11011000001 Octal 3301 Duodecimal 1001 Hexadecimal 6C1 1729 is known as the Hardy-Ramanujan number, after a famous anecdote of the British mathematician G. H. Hardy regarding... 3600 is a number that is equal to 3000 + 600. ... 6174 is known as Kaprekars constant or Kaprekars Operation[1][2][3] after the Indian mathematician D. R. Kaprekar. ... Cardinal seven thousand seven hundred [and] forty-four Ordinal 7744th (seven thousand seven hundred [and] forty-fourth) Factorization Divisors 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 176, 242, 352, 484, 704, 968, 1,936, 3,872 Roman numeral Binary 1111001000000 Octal 17100 Duodecimal 4594 Hexadecimal 1E40 7... Cardinal eight thousand one hundred [and] twenty-eight Ordinal 8128th (eight thousand one hundred [and] twenty-eighth) Factorization Divisors 2, 4, 8, 11, 16, 22, 32, 44, 64, 127, 254, 508, 1,016, 2,032, 4,064 Roman numeral Binary 1111111000000 Octal 17700 Duodecimal 4854 Hexadecimal 1FC0 8,128 is... The number 69,105 was used as an in-joke at the United States computer game manufacturer Infocom. ... 142,857 is the best-known cyclic number. ... 6000000 is the number after 5999999 and before 6000001. ...

Named integers

• Graham's number
• Hardy-Ramanujan number
• Skewes' number
• Steinhaus' Mega and Megiston, Moser's number
• Number of the Beast
• Kaprekar's constant

Grahams number, named after Ronald Graham, is often described as the largest number that has ever been seriously used in a mathematical proof. ... This article is about the number 1729. ... In number theory, Skewes number is by definition the smallest natural number x for which π(x) − Li(x) ≥ 0 where π(x) is the prime counting function and Li(x) is the offset logarithmic integral. ... In mathematics, Mosers polygon notation is a means of expressing certain extremely large numbers. ... The Number of the Beast is a concept from the Book of Revelation of the New Testament of the Christian Bible. ... 6174 is known as Kaprekars constant or Kaprekars Operation[1][2][3] after the Indian mathematician D. R. Kaprekar. ...

Prime numbers

A prime number is a positive integer which has exactly two divisors: one and itself. In mathematics, a prime number (or a prime) is a natural number that has exactly two (distinct) natural number divisors, which are 1 and the prime number itself. ...

• List of prime numbers

The first 100 prime numbers: There are infinitely many prime numbers. ...

“II” redirects here. ... This article discusses the number three. ... Look up five in Wiktionary, the free dictionary. ... Seven Days of Creation - 1765 book, title page Seven (7) is the sixth successor of one (1). ... 11 (eleven) is the natural number following 10 and preceding 12. ... 13 (thirteen) is the natural number following 12 and preceding 14. ... 17 (seventeen) is the natural number following 16 and preceding 18. ... 19 (nineteen) is the natural number following 18 and preceding 20. ... This article is about the number 23. ... 29 (twenty-nine) is the natural number following 28 and preceding 30. ... 31 (thirty-one) is the natural number following 30 and preceding 32. ... 37 (thirty-seven) is the natural number following 36 and preceding 38. ... 41 (forty-one) is the natural number following 40 and preceding 42. ... 43 (forty-three) is the natural number following 42 and preceding 44. ... 47 (forty-seven) is the natural number following 46 and followed by 48. ... 53 (fifty-three) is the natural number following 52 and preceding 54. ... 59 (fifty-nine) is the natural number following 58 and preceding 60. ... 61 (sixty-one) is the natural number following 60 and preceding 62. ... 67 is the natural number following 66 and preceding 68. ... 71 is the natural number following 70 and preceding 72. ... 73 (seventy-three) is the natural number following 72 and preceding 74. ... 79 (seventy-nine) is the natural number following 78 and preceding 80. ... 83 (eighty-three) is the natural number following 82 and preceding 84. ... 89 (eighty-nine) is the natural number following 88 and preceding 90. ... 97 is the natural number following 96 and preceding 98. ... 101 (one hundred [and] one) is the natural number following 100 and preceding 102. ... 103 is the natural number following 102 and preceding 104. ... 107 is the natural number following 106 and preceding 108. ... 109 is the natural number following 108 and preceding 110. ... 113 is the natural number following 112 and preceding 114. ... 127 is the natural number following 126 and preceding 128. ... 131 is the natural number following 130 and preceding 132. ... 137 is the natural number following 136 and preceding 138. ... 139 (One hundred thirty-nine) is the natural number following 138 and preceding 140. ... 149 is the natural number between 148 and 150. ... 151 is a natural number. ... 157 is the number equal to 100 + 50 + 7, following 156 and preceding 158. ... 163 is the natural number following one hundred sixty-two and preceding one hundred sixty-four. ... 167 is the natural number following 166 and preceding 168. ... 173 is the natural number between 172 and 174. ... 179 is the natural number between 178 and 180. ... 181 is the natural number between 180 and 182. ... 191 is the natural number between 190 and 192. ... 193 is the natural number between 192 and 194. ... 197 is the natural number between 196 and 198. ... 199 is the natural number between 198 and 200. ... 211 is the natural number between 210 and 212. ... 223 is the natural number between 222 and 224. ... 227 is the natural number between 226 and 228. ... 229 is the natural number between 228 and 230. ... 233 is the natural number between 232 and 234. ... 239 (two hundred [and] thirty-nine) is the natural number following 238 and preceding 240. ... 241 is the natural number between 240 and 242. ... 251 is the natural number between 250 and 252. ... 257 is the natural number between 256 and 258. ... 263 is the natural number between 262 and 264. ... 269 is the natural number between 268 and 270. ...

Perfect numbers

A perfect number is an integer which is the sum of its positive proper divisors (all divisors except itself). In mathematics, a perfect number is defined as an integer which is the sum of its proper positive divisors, that is, the sum of the positive divisors not including the number. ...

The first ten perfect numbers:

Cardinal numbers

In the following tables, [and] indicates that the word and is used in some dialects (such as British English), and omitted in other dialects (such as American English). Aleph-0, the smallest infinite cardinal In mathematics, cardinal numbers, or cardinals for short, are a generalized kind of number used to denote the size of a set. ... A dialect (from the Greek word διάλεκτος, dialektos) is a variety of a language characteristic of a particular group of the languages speakers. ... British English (BrE) is a broad term used to distinguish the forms of the English language used in the United Kingdom from forms used elsewhere. ... For other uses, see American English (disambiguation). ...

Small numbers

This table demonstrates the standard English construction of small cardinal numbers up to ten million -- names for which all variants of English agree.

A brace of something is a way of defining the quantity of them as there being two of the items. ... Thirteen items in a rectangular space, 3+2+3+2+3 arrangement with aspect ratio near 3:2 Thirteen items in a rectangular space, 4+5+4 arrangement with aspect ratio near 11:6 A bakers dozen, also known as long dozen, is 13, one more than a proper... The Gettysburg Address is the most famous speech of U.S. President Abraham Lincoln and one of the most quoted speeches in United States history. ... Categories: | | ... The Number of the Beast is a concept from the Book of Revelation of the New Testament of the Christian Bible. ... Memory (Random Access Memory) Look up computing in Wiktionary, the free dictionary. ... In computing, binary prefixes can be used to quantify large numbers where powers of two are more useful than powers of ten. ... Myriad is a classical Greek name for the number 104 = 10 000, or a group of 10 000 people, etc. ... A lakh (Hindi: लाख, Urdu: Ù„Ú©Ú¾, Bengali: , Tamil : இலட்சம்) is a unit in the Indian numbering system, widely used both in official and other contexts in Bangladesh, India, Sri Lanka, and Pakistan. ... Memory (Random Access Memory) Look up computing in Wiktionary, the free dictionary. ... In computing, binary prefixes can be used to quantify large numbers where powers of two are more useful than powers of ten. ... A crore is a unit in the Indian numbering system, still widely used in Bangladesh, India, Myanmar, Sri Lanka, and Pakistan. ...

English names for powers of 10

This table compares the English names of cardinal numbers according to various American, British, and Continental European conventions. See names of numbers in English or English-language numerals for more information on naming numbers. Here are examples of how to name numbers in English. ... See also List of numbers (to be merged) There are two main English-language systems of number names: the short scale system (used in the United States, Canada and much of the English-speaking world) and the long scale system (used in most Germanic and Romance languages). ...