1531

This number is a prime.

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(1531, 1543, 1549) is the first case of three consecutive primes (q, r, s), such that (q^3+r^3+s^3)/3 is prime. [Loungrides]

Submitted: 2011-06-26 05:02:26;   Last Modified: 2019-01-01 09:34:16.
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