A single number cannot have a greatest common factor because "common" refers to factors that two or more numbers have in common. You have only one number.
The greatest common factor (GCF) is 4.
The greatest common factor is 2
The Greatest Common Factor (GCF) is: 4
The greatest common factor of 4 and 72 is 4.
The greatest common factor of 4 and 64 is 4.
The greatest common factor of 4 and 32 is 4
The Greatest Common Factor (GCF) is: 4
The GCF is 4.
The Greatest Common Factor (GCF) of 8 and 68 is: 4
The Greatest Common Factor (GCF) is: 4
common factors are 1, 2 and 4. 4 is the greatest common factor
The greatest common factor of 4 and 99 is 1.