Example: 30 and 42
Factor them.
2 x 3 x 5 = 30
2 x 3 x 7 = 42
Select the common factors.
2 x 3 = 6, the GCF
Gcf you use when you are finding the greatest factor for the numbers. Lcm you use when you are finding the smallest multiple in the numbers factors
You need at least two numbers to find a GCF.
Yes there is
The GCF of these three numbers is 5.
The GCF of all three numbers is 20 !
The gcf of the given three numbers is 1
15, 30 and 45 have a GCF of 15.
The GCF of the given three numbers is 23
The GCF of the given three numbers is 1
The GCF of the given three numbers is 1
The GCF of the given three numbers is 14
The GCF of the given three numbers is 1