35132...77921 (10839-digits)

This number is a prime.

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99235*1378^3451 + 1 is prime. Note that 99235 and 1378 are both triangular numbers whose reversals are prime, and that 3!+4!+5!+1! is prime. [Earls]

Submitted: 2004-09-09 13:31:49; Last Modified: 2008-01-30 17:28:00.