821

This number is a prime.

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The smallest prime of the first prime quadruple for which the sums of the cubes of the digits of the four primes (821, 823, 827, 829) are primes themselves (521, 547, 863, 1249). [Trotter]

Submitted: 2001-08-02 18:38:12; Last Modified: 2008-01-30 17:19:23.