52776...30177 (7054-digits)

This number is a prime.

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123456*91^3598+1 is prime. Note that 1^2 + 2^2 + 3^2 + 4^2 + 5^2 + 6^2 = 91, and that 3598 is a left truncatable 3-almost prime. [Earls]

Submitted: 2004-09-05 12:29:18; Last Modified: 2008-01-30 17:28:00.