What is the Greatest Common Factor for 132 and 180?

Answer: 12

Step-by-step explanation:

1.) Find the prime factorization of 132

132 = 2 * 2 * 3 * 11

2.) Find the prime factorization of 180

180 = 2 * 2 * 3 * 3 * 5

3.) To find the gcf, multiply all the prime factors common to both numbers:

Therefore, GCF = 2 * 2 * 3

GCF = 12