It is one
The GCF is 1.
The GCF is 1.
The GCF is 1.
The Greatest Common Factor (GCF) is: 9
The Greatest Common Factor (GCF) is: 9
27/3 = 9 and 51/3 = 17 so three is the greatest common factor (it's the only)
The greatest common factor of 9 and 25 is 1
The greatest common factor of 9 , 8 = 1
The greatest common factor of 9 and 620 is 1.
The Greatest Common Factor of 9, 23 is 1.
The greatest common factor of 9 and 618 is 3
The Greatest Common Factor of 60, 21, 9: 3