Question

What’s the greatest common factor of 45 and 60 using prime factorization

Answer 1

Step-by-step explanation:

We found the factors and prime factorization of 45 and 60. The biggest common factor number is the GCF number. So the greatest common factor 45 and 60 is 15.

Answer 2

Answer:

15

Step-by-step explanation:

The prime factorization of 45 is: 3 x 3 x 5. The prime factorization of 60 is: 2 x 2 x 3 x 5. The prime factors and multiplicities 45 and 60 have in common are: 3 x 5=15.