Answer:
6
Explanation:
The first step to find the gcf of 42 and 66 is to list the factors of each number. The factors of 42 are 1, 2, 3, 6, 7, 14, 21 and 42. The factors of 66 are 1, 2, 3, 6, 11, 22, 33 and 66. So, the Greatest Common Factor for these numbers is 6 …