43691
This number is a prime.
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The sixth Wagstaff prime. Each of the first 6 have a sum of
digits that is prime. The next has a sum of digits equal to
28, which is "perfect."
Submitted: 2015-01-26 01:16:41; Last Modified: 2015-01-26 01:28:33.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell