Determine the possible nonzero units digits of a duodecimal positive integer n such that:

Each of n and n+2 is a prime number, and:

n+2 is expressible as the sum of squares of two positive itegers.

Charile's program provides the same result (and more) as I did by hand. Again, no proof, but I will concur with his generated results.  n will be either 3 or B.

Posted by Dej Mar on 2011-09-22 15:53:59