The book is now available! 172
(another Prime Pages' Curiosity)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

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172 is the only byte whose binary representation contains a 1 at bit n iff n is prime (17210 = 101011002). [Thoms]


  Submitted: 2001-09-09 23:00:42;   Last Modified: 2008-01-30 11:28:00.

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