Question: what is the common factor between 6 and 100?
Answer: The gcf of 6 and 100 can be obtained like this: The factors of 6 are 6, 3, 2, 1. The factors of 100 are 100, 50, 25, 20, 10, 5, 4, 2, 1. The common factors of 6 and 100 are 2, 1, intersecting the two sets above.