The GCF is 4.
You don't! There are no common factors.
Anything which turns out to be 8.
The GCF is: 136
It is not possible to give a sensible answer to this question. The greatest common factor (GCF) refers to a factor that is COMMON to two or more numbers or expressions. You have only one expression in the question!
The greatest common factor of 8 and 32 is 8.
I think you're mixing a few concepts here. In order to find something in common with something else, you need at least two things. You have only one expression here. The least common factor of any set of integers is 1. I suspect you may want to factor this expression. There is a formula for the difference of squares. This factors to (x - 8)(x + 8) You could compare those factors to the factors of another expression to find something in common between them.
4c would be 1Q
8(x + 1)
The greatest common factor of 8 and 24 is 8.
The greatest common factor of 8 and 400 is 8.
The greatest common factor of 1624 , 8 = 8
The Greatest Common Factor (GCF) is: 8