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 19:37:18; Last Modified: 2021-01-09 13:53:38.
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