42

This number is a composite.

Single Curio View:   (Seek other curios for this number)
42^2 is the smallest perfect square that is the mean of cubed twin primes. Curiosly, the difference of the twin prime cubed and the mean of the cubed twin primes is again a prime: 42^2 = 11^3 + 433 = 13^3 - 433. [Vrba]

Submitted: 2007-02-03 23:02:06;   Last Modified: 2011-03-22 05:46:24.
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell