You need at least two numbers to find a GCF.
The GCF is 2.
The GCF is 19.
The GCF is 5.
The GCF is 190.
The GCF is 95.
The GCF is 22.
The greatest common factor of 190 and 343 is 1. 190 = 2 x 5 x 19 343 = 7 x 7 x 7
The GCF is 10.
The greatest common factor is 10.
The GCF is 95.
The GCF is 38.
The GCF is 2.