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
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
2x3
3
33x
5x
The GCF is 5xy.
The GCF is 5x
3x2y2
The GCF is 6x.
The GCF is 4.