19

This number is a prime.

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19 = 8 + 2 + 8 + 1, and its reversal equals the square root of 8281.

Submitted: 1999-09-02 23:40:00;   Last Modified: 2008-07-31 06:01:06.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell