51 is a Prime number (its only factors are 1 and 51). Therefore, the GCF must be 1 because 51 doesn't go into 32.
The GCF is 1.
The GCF is 3.
The GCF is 3.
The GCF is 1.
The GCF is 17.
The GCF is 1.
The GCF is 1.
The GCF is 3.
The GCF for 29 51 is 1.
The GCF of 42 and 51 is 3.
255 = 51 x 5 so 51 is GCF
The GCF of 39 and 51 is 3.3