What is the greatest common factor of 24 and 54?

The GCF of 24 and 54 is 6.

The factors of 24: 1, 2, 3, 4, 6, 8, 12, 24

The factors of 54: 1, 2, 3, 6, 9, 18, 27, 54

The GCF is 6.