4920

This number is a composite.

+ 4920 is the smallest number that may be expressed as the difference between the squares of consecutive primes in four different ways (12312 - 12292 = 6172 - 6132 = 2512 - 2412 = 2112 - 1992). [King]

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