17444...11777 (9929-digits)

This number is a prime.

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2808976*676^3506+1 is prime. Multiply the nonzero digits of the squares 2808976 and 676 to get palindromes, and reverse 3506 to get a prime. [Earls]

Submitted: 2004-09-16 22:51:13; Last Modified: 2008-01-30 17:28:00.