It is: 6
The GCF of 918 and 12 is 6. The GCF of 9, 18 and 12 is 3.
The GCF of 374 and 918 is 34.
The GCF of 1218 and 42 is 42. The GCF of 12, 18 and 42 is 6.
The easiest way to tackle this is to look solely at the factors of 6. These are 1, 2, 3 and 6. The next step is to divide 918 by each one in turn to find out what the largest one is which 918 can divide by. In this case, 918 can divide by 6 to give 153. Thus the GCF of 918 and 6 is 6.
The GCF is 21.
If that's 9 and 18, the GCF is 9.
The GCF of 18 and 42 is 6. The GCF of 42 and 56 is 14.
The GCF of 42 and 35 is 7.factors of 42: 2,6,7factors of 35: 5,7
Since 7 is a factor of 42, it is automatically the GCF.
The GCF is 3.
The GCF is 7.
The GCF is 7.