71

This number is a prime.

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Only 7-1 of the 71 repfigit numbers less than 10^19 are prime.

Submitted: 1999-09-06 21:10:14;   Last Modified: 2008-01-30 17:28:00.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell