3

This number is a prime.

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(a^(p)-a)/p is congruent to 0 (mod 3), for all primes p greater than the positive integer a, except where p = 3, a = 2. [Papadimitriou]

Submitted: 2008-10-19 08:43:48; Last Modified: 2008-10-20 23:50:46.