The GCF is 1.
The GCF is 1.
The GCF is 1.
The GCF is 1.
The GCF is 1.
The GCF is 1.
The GCF of 49 and 49 is 49.
51: 51, 102, 153, 204, 255 68: 68, 136, 204, 272, 340 The least common multiple of 51 and 68 is 204.
The GCF is 3.
These numbers are co-prime so there is no common factor above 1.
The GCF is 17.
The GCF is 3.
The GCF is 1.