At least: 3*3=9

So, 9=3+3+3

10=3+3+4

1 1=3+4+4 or 3+3+5.

12=4+4+4 or 3+4+5.

13=4+4+5 or 3+5+5.

14=4+5+5

15=5+5+5

So there are seven scoring possibilities (9, 10,1,12, 13, 14, 15).