factors of 12 - 1 , 2, 3, 4, 6, 12
factors of 18 - 1, 2, 3, 6, 9, 18
factors of 42 - 1, 2, 3, 6, 7, 14, 21, 42
As you can see these are all of the factors of the three numbers. The GCF means the greatest common factor. These three numbers actually have four common factors (1,2,3 and 6) but the number 6 is the greatest so it is labeled the GCF.
The GCF is 6.
The GCF of 1218 and 42 is 42. The GCF of 12, 18 and 42 is 6.
The greatest common factor of 18 21 and 42 is 3.
The GCF of 42, 48, and 78 is 6.
The GCF of 12, 18, 36, and 42 is 6.
The GCF is 6.
42 / 18 = 2 r 6 18 / 6 = 3 r 0 -> gcf of 42 and 18 is 6.
The GCF of 18 and 42 is 6. The GCF of 42 and 56 is 14.
The GCF of 12 and 42 is 6
The greatest common factor of 18, 30, and 42 is 2.
The GCF is 6.
The GCF is 6.