What is the greatest common factor of 19 and 27?

Answer 1

The GCF of 19 and 27 is 1.

First you have to find the factors of each of the numbers given 27 and 19

Factors of 27 = 1, 3, 9 and 27

Factors of 19 = 1, and 19

Common factor is 1

Therefore, 1 is the only factor that these numbers have in common .

Hence, GCF of 27 and 19 is 1

Answer 2

List them all, see what factors are common to both, then pick the greatest of the common ones.

Factors of 27: 1, 3, 9, and 27.

Factors of 19: 1 and 19.

Common factors of 27 and 19: only ' 1 '.

Since ' 1 ' is the only factor they have in common, it's also the greatest one.

Answer 3

Not sure what a gfc is.

The GCF of (27, 19) is 1

Answer 4

' 1 ' is.