There cannot be a common factor of just one number. To be common there need to be at least two numbers. If you find all the factors of two or more numbers, and you find some factors are the same ("common"), then the largest of those common factors is the Greatest Common Factor.
The greatest common factor of 98 and 112 is 14.
The greatest common factor of 34 and 98 is 2.
The Greatest Common Factor (GCF) of 21 and 98 is 7.
The GCF is 14.
greatest common factor of 98 and 70 is 14.
The Greatest Common Factor of 42, 56, 98: 14
The GCF (Greatest Common Factor) of 63 and 98 is: 7
The greatest common factor (GCF) of 42, 98, and 112 is: 14
The greatest common factor of the numbers 5, 98 and 198 is 1.
Since 49 is a factor of 98, it is automatically the GCF.
The greatest common factor of 28, 70, and 98 is 14.
The greatest common factor (GCF) is 98.