17

This number is a prime.

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The smallest emirp p such that the digits of all primes up to p add up to an emirp: 2 + 3 + 5 + 7 + 1 + 1 + 1 + 3 + 1 + 7 = 31. [Beedassy]

Submitted: 2010-01-18 13:46:46; Last Modified: 2010-01-18 18:20:12.