1532

This number is a composite.

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3^1532+1532 is the largest non-titanic prime of form 3^n+n. Note that it is the 4th such prime. The previous primes of the same form are for the prime n=2 and the composite numbers 8 and 34. [Loungrides]

Submitted: 2016-05-04 10:55:47; Last Modified: 2018-05-27 16:10:03.