3874204890000000001

This number is a prime.

387420489 0000000001

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The only non-titanic prime of form a^a*b^b+1 where a, b are successive composite numbers, i.e., 9^9*10^10+1 [Loungrides]

Submitted: 2016-09-19 09:18:23; Last Modified: 2018-12-22 14:16:41.