It is: 1
The GCF is 1.
The GCF is 1.
The GCF is 70.
The GCF is 70.
You need at least two numbers to find a GCF. IF that's 19 and 70, the GCF is 1.
The GCF is 70.
The GCF is 70.
The GCF is 14.
The GCF is 5.
The GCF is 70.
The GCF is 14.
The GCF is 70.