413

This number is a composite.

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At 413, the number of composite numbers ending with a 3 finally catches up to the number of primes ending with a 3 at 21 each after falling behind by as much as 9 to 3 at n = 113. [Gaydos]

Submitted: 2015-12-19 02:01:33; Last Modified: 2019-07-31 11:41:15.