47

This number is a prime.

Single Curio View:   (Seek other curios for this number)
In 1958, R. M. Robinson was unable to find a single prime of the form 47 * 2^n + 1.

Submitted: 2008-10-10 21:56:23;   Last Modified: 2008-10-10 21:58:00.
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell