The prime factorizations of 54 and 72 are shown below.Prime factorization of 54: 2, 3, 3, 3Prime factorization of 72: 2, 2, 2, 3, 3Using the prime factorizations, what is the greatest common factor of 54 and 72?2 X 32 X 3 ´X32 X2 X3 X 32 X2 X2X3 X 3 X 3P.s Those X stands For Multiplying

They share a few numbers together so you would multiply the number they have in common with the actual number
So both of them have one 2 and two 3's so the answer is:
2 X 3 X 3