2 / 1 = 2 
2 / 2 = 0 
4 / 2 = 2 
6 / 2 = 3 
6 / 3 = 2 
8 / 2 = 4 
8 / 4 = 2 
10 / 2 = 5 
10 / 5 = 5 
12 / 2 = 6 
12 / 3 = 4 
12 / 4 = 3 
12 / 6 = 2