What is the gcf of 80 and 140?

Answer 1

The factors of 80 are:

1, 2, 4, 5, 8, 10, 16, 20, 40, 80

The factors of 140 are:

1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140

The common factors are:

1, 2, 4, 5, 10, 20

The Greatest Common Factor (GCF) is:

20

Answer 2

The GCF is 20.

Answer 3

GCF(140, 140, 80) = 20.