What are Two factors of 60 with a sum of 17?
First you should list all the factors of 60:
1,2,3,4,5,6,10,12,15,20,30
Now we can go through each of the factors and see if we can get
another factor to add to 17 with it:
For 1 , we would need another factor of 16, which we don't
have.
Trying 2, we would need 15, which IS a factor. So 2 and 15 would
work.