The GCF is a.
The GCF is 2x.
The GCF is 1.
One place where this is used is to simplify fractions: you need to find the greatest common factor, then divide top and bottom by this greatest common factor.Also, in factoring expressions - you can take out the greatest common factor. For example (using "^" for power): 5x^2 + 10x has the greatest common factor 5x; so this can be taken out as a common factor, resulting in 5x(x + 2).
You need at least two terms to find a GCF.
The greatest common factor of 40x2 and 20x7 is 20x2
z2 = z * z * 1; z = z * 1. Greatest common factor is z.
3x
9n3
6x3
1024 = 2 to the power 10, 2187 = 3 to the power 7. There is no common factor above 1.
3x
4c
3X
The GCF is a.
4x
3x