199

This number is a prime.

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(199, 211, 223) is the first triple of primes of the form (p, p+12, p+24). Note that for p < 1000 is the only such triple. Note also that 199211 and 223211 are primes. [Loungrides]

Submitted: 2009-08-15 14:24:39; Last Modified: 2009-08-15 16:10:19.