List the factors.
1, 2, 5, 10
1, 3, 5, 15
The GCF is 5.
The GCF of 10 and 15 is 5.
5 |10,15, |_________2,3The GCF of 10 and 15 is 5.
155,3105,2The GCF is 5.The GCF of 10 and 15 is 5.
You need at least two numbers to find a GCF.
The GCF is 5.
The GCF is 5.
The GCF is 1.
The GCF is 1.
The GCF is 5.
5
The GCF of 24, 10, and 15 is 1.
Since 15 is a factor of 60, it is automatically the GCF.