Hello,
I go this from an SAT practice book. Unfortunatly it does not show the solution. This is the problem:
please help. i have no clue how to get to the answer
So if and a and b are positive integer then a can only contain prime factors 2 and 3. And the power of each prime factor cannot be greater then 1. The power of 2 is equal to 0 because if it is equal to 1 then must contain which is impossible. The power of 3 cannot be equal to 0 because in such case must contain which is impossible. So then and