Question

What is the GCF of 5a and 7c?

Answer 1

To get the Greates Common Factor (GCF) of 5 and 7 we need to factor each value first and then we choose all the copies of factors and multiply them: 

5:   5 7:    7GCF:     

The Greates Common Factor (GCF) is:   1

Answer 2

1 is yourgrates common factor for each number