Id appreciate some help with this problem. I have no idea have to do it.

x and n are natural numbers, n>1. If x^n - 3^n = a positive prime number, then x = 4 and n = a positive prime number. Prove it!

- September 24th 2011, 11:23 AMKarqkenzarProve that if x^n - 3^n = a prime number, then x = 4 and n = a prime number
Id appreciate some help with this problem. I have no idea have to do it.

x and n are natural numbers, n>1. If x^n - 3^n = a positive prime number, then x = 4 and n = a positive prime number. Prove it!