A single number cannot have a greatest common factor. It is determined by the factors of two or more numbers. The Greatest Common Factor (GCF) is the largest factor common to two or more numbers. If that's 2 and 8, the GCF is 2.
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.
The Greatest Common Factor of 28, 48 is 4.
The greatest common factor of 48 and 28 is 4.
The greatest common factor of 16 and 28 is 4
The greatest common factor of 28 and 49 is 7.
The GCF (Greatest Common Factor) of 28 and 140 is: 2828.
The greatest common factor is 28.
The greatest common factor of 154 , 28 = 14
The greatest common factor of 28 and 55 is 1
The greatest common factor of 2702 , 28 = 14
The greatest common factor of 28 and 20 is 4.
The Greatest Common Factor of 28, 48 is 4.
The greatest common factor of 48 and 28 is 4.
The greatest common factor of 16 and 28 is 4
The greatest common factor of 28 and 120 is 4.
The greatest common factor of 28 and 250 is 2.
The greatest common factor of 7 and 28 is 7.
The greatest, and only, common factor of 57 (=3x19) and 28 (=22x7) is 1.