156 | 2
78 | 2 ---> 156 = 2*78
39 | 3 ---> 156 = 2*2*39
13 | 13 ---> 156 = 2*2*3*13
1
-------> 156 = 2x2x3x13 = (2^2)x3x13
112 | 2
56 | 2 ---> 112 = 2*56
28 | 2 ---> 112 = 2*2*28
14 | 2 ---> 112 = 2*2*2*14
7 | 7 ---> 112 = 2*2*2*2*7
1
---------> 112 = 2x2x2x2x7 = (2^4)x7
