Question: what is the highest common factor between 24 and 96?
Answer: The common factors of 24 and 96 are 24, 12, 8, 6, 4, 3, 2, 1, intersecting the two sets above. In the intersection factors of 24 ∩ factors of 96 the greatest element is 24. Therefore, the greatest common factor of 24 and 96 is 24.