Answer:
the GCF of 16 and 20 is 4
Explanation:
you will find that I can divide by 16 and 20, he can be divided by 2, then when you divide that, lower it to the part of 16 and 20, then he can still be divided, right now you will find that I can divide by 8 and 10 he can divide by 2 then you lower your answer then when you lower you can no longer divide 5 by only 4 so multiply the 2 x 2 that is in left on May side
