2500
1250,2
625,2,2
125,5,2,2
25,5,5,2,2
5,5,5,5,2,2
2500 1250,2 625,2,2 125,5,2,2 25,5,5,2,2 5,5,5,5,2,2
31 is prime. No tree.
29 is prime. No tree.
43 is prime. No tree.
12
22 2,11
38 2,19
82 2,41
22 2,11
Factor tree for 51: 51 * 1 or 17 * 3 Factor tree for 255: 255 * 1 or 51 * 5
13 is already prime. It doesn't need a tree.
231 77,3 11,7,3