suppose a,b and n are positive integers, all greater than 1. if a^n + b^n is prime, what can you say about n?

A) integer must be 2

B)integer need not be 2, but must be a power of 2

C)integer need not be a power of 2, but must be even

D)none of the above

mihir mehan , 14 Years ago

Grade 12