13

This number is a prime.

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In 2007, 13-digit International Standard Book Number (ISBN) were introduced. [McCranie]

Submitted: 2009-01-26 00:43:11;   Last Modified: 2009-01-26 01:04:05.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell