23
This number is a prime.
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23 is the smallest prime that has a number of composites before and after it that form a twin prime pair, i.e., 19
(3 composites) 23 (5 composites) 29 and {3, 5} is a set of twin primes. [Honaker]
Submitted: 2020-06-13 03:08:35; Last Modified: 2020-06-13 03:16:55.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell