Question: what is the greatest common factor gcf of 92 and 69?
Answer: The factors of 92 are 92, 46, 23, 4, 2, 1. The common factors of 69 and 92 are 23, 1, intersecting the two sets above. In the intersection factors of 69 ∩ factors of 92 the greatest element is 23. Therefore, the greatest common factor of 69 and 92 is 23.