The GCF is 21.
42:1,2,3,6,7,14,21,4263:1,3,7,9,21,6398:1,2,7,14,44,98The GCF is seven.
Lcm: 126 gcf: 7
21. 42 = 2 x 3 x 7 63 = 32 x 7 105 = 3 x 5 x 7 gcf = 3 x 7 = 21
If that's 42, 63 and 84, the GCF is 21.
The GCF is 7.
The GCF is 21.
GCF(42, 63, 84) = 21.
The GCF is 21.
The GCF is: 3
The GCF is 21.
The GCF is 21.
The GCF is 21.
The GCF is 21.
The GCF of 28, 42 and 63 is 7.The GCF is 7.
The GCF is 7.
It is: 21