The GCF is 12.
The Greatest Common Factor of 324, 180, 120 is 12.
The greatest common factor of the numbers 120 and 180 is 60.
The GCF of 90, 120 and 180 is 30.
60
The greatest common factor of the numbers 120, 180 and 240 is 60. The GCF can't be any larger than the smallest difference between the numbers, which is 60. It is easy to see that 60 is a factor of each of the numbers in the set, so it is the GCF.
The GCF is 15.
If you mean 90, 120 and 180 then the GCF is 30
60, 120 and 180, among others.
The GCF of 120, 150, and 180 is 30. The GCF of a set can't be larger than the smallest difference between numbers in the set, which, in this case, is 30. Since 30 is a factor of all of the numbers of the set, it is the GCF.
20
It is: 4
The GCF of the given three numbers is 60