6.
The GCF or Greatest Common Factor is the greatest factor shared by a group of numbers. To find it, list the factors of the numbers and circle all the common factors. The, choose the greatest one, the GCF.
6: 1, 2, 3, 6
18: 1, 2, 3, 6, 18
72: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 35, 72
As you can see, the common factors are 1, 2, 3, and 6, the greatest of which is 6.
The Greatest Common Factor is 18
The greatest common factor of the numbers 18, 30 and 72 is 6.
The greatest common factor of 54 and 72 is 18.
The greatest common factor is 18.
It is: 18
Since 18 is a factor of 72, it is automatically the GCF.
The GCF is 18.
It is 18
The GCF is 18.
The GCF is 18.
The GCF of 18, 60, and 72 is 6.
It is: 18