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 (GCF) is 4.
5m
2x3
3
33x
5x
The greatest common factor of 12xy2 + 6x is 6x. The greatest common factor of 12 and 6 is 6, and the greatest common factor of xy2 and x is x. If you took 6x out of both factors, the end result would be 2y2+1
The GCF is 5xy.
The GCF is 5x
3x2y2
The GCF is 6x.
The GCF is 4.