Hello
Got another set of questions and this question is really bugging me.
An amicable pair (x,y) is where the proper divisiors (divisors excluding itself) of y sum up to x, and the proper divisors of x sum up to y. Given that p=3*2^(n)-1 and q=3*2^(n-1)-1 and r=9*2^(2n-1)-1 are ALL prime...