Respuesta :
gcf = 3
the factors of 12 are 1, 2, 3, 4, 6 and 12
the factors of 45 are 1, 3, 5, 9, 15 and 45
the greatest common factor of 12 and 45 is 3
Step one: find the prime factorization of 12
12 = 2 x 2 x 3
Step two: fine the prime factorization of 45
45 = 3 x 3 x 5
Step three: to find the GCF, multiply all the prime factors common to both numbers:
Therefore, GCF is 3
12 = 2 x 2 x 3
Step two: fine the prime factorization of 45
45 = 3 x 3 x 5
Step three: to find the GCF, multiply all the prime factors common to both numbers:
Therefore, GCF is 3