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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

+ G.C. Chrystal's Algebra (Edinburgh, 1889, vol. ii, p. 159) gives the following amusing fallacy:

[Caldwell]

+ The smallest prime such that it and the next 4 primes (1889, 1901, 1907, 1913, 1931) are all equal to 5 (mod 6). [Post]

+ The year the Wall Street Journal was first published. [Green]

+ The smallest prime formed by using all the digits which can be digital root of cubic numbers. [Gupta]

(There are 4 curios for this number that have not yet been approved by an editor.)




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