You need at least two terms to find something in common.
The GCF is xxzz.
xxyyyzz is one term. You need at least two terms to find a GCF.
The GCF is xxzz.
The GCF is 6.
The GCF is 9.
The GCF is 4.
The GCF is 30.
50
The GCF is: 1
The GCF is 27.
The GCF is 1.
The GCF is 3.