863

This number is a prime.

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The smallest prime p in a chain of six consecutive primes {863, 877, 881, 883, 887, 907} such that q = 4*p+9 is also a prime. [Loungrides]

Submitted: 2012-07-02 14:37:18;   Last Modified: 2021-01-09 07:53:38.
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