79
This number is a prime.
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The smallest (and only known) integer congruent to 7 mod 8
which is not expressible as the sum of a square and twice a
prime, i.e., as x^2 + 2*p. [Oakes]
Submitted: 2009-10-06 11:06:36; Last Modified: 2009-10-06 11:33:19.
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