6581

This number is a prime.

3219^2 + 5740^2 = 6581^2 is the smallest pandigital Pythagorean triangle having a prime-numbered side. [Gaydos]

(There is one curio for this number that has not yet been approved by an editor.)

Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell