It is: 18.
The GCF is 18.
GCF(36, 54, 72) = 18.
9
The GCF is 18.
The GCF is 18.
The Greatest Common Factor of 9, 36, 72: 9
The GCF is 18.
The GCF is 6.
The GCF is 6.
The GCF is 9.
Factors of 72: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72.Factors of 54: 1, 2, 3, 6, 9, 18, 27, 54.GCF (72, 54) = 18
The GCF is 18.