What is the greatest common factor of 12 and 27?

Answer 1

To find the answer, you first should write all the factors of 27 and 12. The greatest number that is common to both sets is the GCF.

12: 1,2,3,4,6,12

27: 1,3,9,27

Because 3 is the greatest number that appears in both sets, it is the greatest common factor.

Answer 2

The greatest common factor (GCF) is often also called the greatest common divisor (GCD) or highest common factor (HCF). Keep in mind that these different terms all refer to the same thing: the largest integer which evenly divides two or more numbers.

The greatest common factor of 12 and 27 is 3

Answer 3

GCF(12, 27) = 3.