The prime factors are:
44 = 2 * 2 * 11
98 = 2 * 7 * 7
So the greatest common factor is 2.
The GCF is 2.
The GCF is 2.
The GCF is 2.
The GCF is 4.
The GCF is 1.
The GCF is 49.
The GCF is 2.
The GCF is 1.
The GCF is 2.
The GCF is 2.
The GCF is 2.
The GCF is 14.