1
7
Just 1.
7 and 5
6
The GCF of 6, 7, and 28 is 1.
The GCF is 1.
The GCF is 1.
1
The GCF is 1.
The common factors are 1 and 7. The GCF is 7.
7 is prime; it is only divisible by 1 and itself.6 is divisible by 1, 2, 3 and 6.The only factor common to both is 1.The Greatest Common Factor (GCF) is: 1
The GCF is 1.