The book is now available! 18281
(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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The smallest non-trivial palindrome n such that 2*n+1 (2*18281+1 = 36563) is a palindromic prime. [Jha]


  Submitted: 2019-02-16 13:42:29;   Last Modified: 2019-02-16 14:56:39.

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