72

This number is a composite.

Single Curio View:   (Seek other curios for this number)
72 is the smallest number that can be expressed as the difference of the squares of consecutive primes in two distinct ways: {192 - 172} and {112 - 72}. [King]

Submitted: 2004-02-17 06:15:27;   Last Modified: 2013-04-07 12:24:41.
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell