gcf(81, 36) = 9 gcf(27, 54) = 27 gcf(81, 36, 27, 54) = 9
The GCF of 27 and 36 is 9
The GCF is 3.
GCF(27, 30, 36) = 3
The GCF is 3.
The GCF is 9.
The GCF is 3.
The GCF is: 9
The GCF of 27, 36, and 54 is 9.
It is: 9
It is: 9
The GCF of 27, 36 and 72 is 9.The GCF is 9.