The GCF is 1.
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 1.
The GCF is 68, the LCM is 68
gcf of 68 and 22 is 2.
The GCF is 1.
The GCF is 1.
The GCF is 1.
The GCF is 1.
The GCF is 4.
The GCF is 1.
The GCF is 2.
The GCF is 2.