19
This number is a prime.
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The recurring decimal cycles for 1/19 to (19 - 1)/19 form a true magic square.
Submitted: 1999-09-02 23:40:00; Last Modified: 2008-04-27 22:44:24.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell