0
Wiki User
The GCF is 7.
It is 7
hcf = 42, lcm = 84.
7
The GCF is 2.
The GCF is 21.
The GCF is 42.
The greatest common factor of 42, 77 and 84 is 7.
HCF(21, 77, 84) = 7.
42 ( 84 = 42 x 2, 126 = 42 x 3)