Question: is 12 a common factor of 46 and 60?
Answer: The gcf of 46 and 60 can be obtained like this: The factors of 46 are 46, 23, 2, 1. The factors of 60 are 60, 30, 20, 15, 12, 10, 6, 5, 4, 3, 2, 1. The common factors of 46 and 60 are 2, 1, intersecting the two sets above.