There is no common factor for a single number. The Greatest Common Factor (GCF) is the largest factor common to two or more numbers. For example, 17 is the GCF of 34, 51, and 102 because it is the largest number that is a factor common to all three numbers.
You need at least two numbers to find a GCF.
For common factors to exist, there need to be more than one number to compare.
The greatest common factor of 9 , 8 = 1
The greatest common factor of 5 and 9 is 1.
3 is the greatest common factor of 9 and 12.
The Greatest Common Factor (GCF) is: 9
The Greatest Common Factor (GCF) is: 9
The Greatest Common Factor (GCF) is: 9
The Greatest Common Factor (GCF) is: 9
The greatest common factor of 9 and 25 is 1
The greatest common factor of 9 , 8 = 1
The Greatest Common Factor of 9, 23 is 1.
The greatest common factor of 9 and 620 is 1.
The greatest common factor of 9 and 618 is 3
The Greatest Common Factor of 81, 108, 117: 9
The Greatest Common Factor of 60, 21, 9: 3
The greatest common factor of 5 and 9 is 1.
The Greatest Common Factor (GCF) is: 9
3 is the greatest common factor of 9 and 12.