4 years ago

Find the gcf of 12 and 45

2 answers:

algol134 years ago

4 0

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

krek1111 [17]4 years ago

3 0

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

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