The GCF is 10.
The GCF is 10.
The GCF is 10.
720
The GCF is 10.
The GCF is 10.
The GCF is 10.
The GCF is 2.
The GCF is 80.
The GCF is 8.
The GCF is 4.
Factors of 90: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90.Factors of 80: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80.GCF (90, 80) = 10