Answer:
The common factors of 32 and 72 are 8, 4, 2, 1, intersecting the two sets above. In the intersection factors of 32 ∩ factors of 72 the greatest element is 8. Therefore, the greatest common factor of 32 and 72 is 8.
Step-by-step explanation:
2 x 2 x 2 is the gcf of 32 and 72. gcf(32,72) = 8
