29

This number is a prime.

Single Curio View:   (Seek other curios for this number)
The only two-digit prime whose square is the sum of the squares of two consecutive two-digit numbers: (20^2+21^2). [Silva]

Submitted: 2008-07-27 07:46:09;   Last Modified: 2016-06-26 13:15:25.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell