The book is now available! 21
(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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Phi(21) is the reversal of 21. [Honaker]


  Submitted: 2000-05-31 22:25:22;   Last Modified: 2018-04-29 11:01:42.

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