3 and 18
18, 36, 54
No. 6 is not a factor of 15. The greatest common factor of 15 and 18 is 3.
The GCF is 9.
You need at least two numbers to find a GCF. The GCF of 18 and 24 is 6.
3 and 18
9 and 6 have an LCM of 18 and a GCF of 3.
18, 36, 54
No. 6 is not a factor of 15. The greatest common factor of 15 and 18 is 3.
9, 18 and 27
The GCF of the given numbers is 3
The GCF of these numbers is 18. This leaves you with 2, 6 and 3 respectively. There is no further common factor.
15 and 18
The GCF of 3, 12, and 18 is 3
The GCF is 9.
The GCF of 9, 18, and 42 is 3.The factors of 9 = 3*3The factors of 18 = 2*3*3The factors of 42 = 2*3*7So the greatest common factor = 3.
The GCF of 18 and 3 = 3