13

This number is a prime.

Single Curio View:   (Seek other curios for this number)
In 2013 there were two 'Friday the 13ths' exactly 13 weeks apart. [Homewood]

Submitted: 2012-07-22 12:23:33;   Last Modified: 2018-04-12 23:18:14.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell