The greatest common factor of 15 and 18 is three.
It is: 3
The greatest common factor of the numbers 15 and 12 is 3.
3
The GCF of 12 and 15 is 3. factors of 12: 1, 2, 3, 4, 6 and 12. factors of 15: 1, 3, 5, and 15. common factors 1 and 3. Since 3 > 1, 3 is the Greatest Common Factor.
3 is the best one
The GCF is 15.
The greatest common factor of 15 and 18 is three.
3
5
It is: 3
15
The GCF is 15.
The GCF is 1.
The GCF is 3.
Since 5 is a factor of 15, it is automatically the GCF.
The GCF is 15.