13

This number is a prime.

Single Curio View:   (Seek other curios for this number)
13 is the hypotenuse of the unique Pythagorean triangle whose area numerically equals its perimeter. [Beedassy]

Submitted: 2006-08-27 18:13:20;   Last Modified: 2008-01-30 11:28:00.
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell