23

This number is a prime.

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(23, 29) is the only pair (p, q), of two consecutive double-digit primes (p < q), such that p^2+q^3-/+1, is a twin prime pair, i.e., (24917, 24919). [Loungrides]

Submitted: 2017-06-08 19:08:18; Last Modified: 2019-02-05 12:56:32.