Question 43801
I need to find the GCF for the group in the problem below, and the steps to reach the solution. Can anyone help? 

6a²b, 9ab², 15a²b²

You need to find all the factors common to all 3

6,9, and 15 have a common factor of 3

a and b are common to all three as well so

3ab is your GCF