What is the Greatest Common Factor of 55 and 75?

What is the Greatest Common Factor of 30y^3 and 20y^2?

What is the prime-power factorization of 65?

What are the positive factors of 60?

Is 72 divisible by 6?

414 is divisible by which of the following numbers: 2, 3, 5, 6, 9, 10?