Question

Factor the expression using the GCF
100 - 80 = ???

Answer 1

20



The greatest common factor of 100 and 80 is 20, so the answer is 20

Answer 2

20

Explanation:

We found the factors and prime factorization of 80 and 100. The biggest common factor number is the GCF number. So the greatest common factor 80 and 100 is 20.