The answer to that is 2 because every number is its own factor and 2 is a prime number so the only factors it has is 1 and itself.
The GCF of -6 and -2 is 2.
The GCF of 4 and 6 is 2.
The GCF is 2.
The GCF is 2.
The GCF is 2.
The GCF is 2.
The GCF is 2.
The GCF is 2. It is: 2The GCF is 2.The GCF is 2.
The GCF is: 2
The GCF is: 2
The GCF of 2124 and 2 is 2. The GCF of 21, 24 and 2 is 1.
As 2 goes into 80, GCF is 2.