Question

What is the GCF of fifteen, twenty-seven, and thirty?

Answer 1

3 by inspection.

Answer 2

thank you

Answer 3

To get the Greates Common Factor (GCF) of 15 and 27 we need to factor each value first and then we choose all the copies of factors and multiply them:

15: 3 5
27: 3 3 3
GCF: 3
The Greates Common Factor (GCF) is: 3