7 is larger than half of 12 so there can be no factor of 12 that is a multiple of 7.
It is: 21/12 = 7/4
60 = 12 x 5 and 84 = 12 x 7 so the common factor is 12.
Factors of 7: 1, 7 Factors of 12: 1, 2, 3, 4, 6, 12 GCF (7, 12) = 1
It is: 1
Both are 1.
The lowest lowest common factor (lcf) of 12, 6, and 7 is 1.
It is not possible to give a sensible answer to this question. The greatest common factor (GCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question!
1
7(c + 12)
The GCF is 1.
No, try 84.