I think my answer is correct, i just need some peer review. 1. The problem statement, all variables and given/known data Let k, m, n ∈ Z+ where k and m are relatively prime. Prove that if k|mn then k|n 3. The attempt at a solution This question seems trivial. We know the property that if x|y then x|yz for all integers z. Therefore, if k and m are relatively prime, it follows that k does not divide into m. It follows that k|n in order for k|mn to be true. Using the property i mentioned, we conclude that k|n. Is this a proper proof?