The book is now available! 43
(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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43^43 + 4 is prime. 43 is the smallest (and perhaps only) prime p such that p^p + (largest digit of p) is also prime. [Earls]


  Submitted: 2004-07-14 17:02:49;   Last Modified: 2008-01-30 11:28:00.

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