3895126220983308449519

This number is a prime.

38 9512622098 3308449519

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3895126220983308449519 = (17-1)^(17+1) - 17^17 is the largest known prime of the form (p-1)^(p+1) - p^p where p is prime. Its sum of digits is a palindromic prime. [Post]

Submitted: 2008-02-06 10:06:43; Last Modified: 2008-02-07 01:21:21.