Respostas

2014-05-25T19:47:04-03:00
91 | 7
13 | 13
  1 | 

91 = 7 . 13

120 | 2
  60 | 2
  30 | 2
  15 | 3
    5 | 5
    1 | 

120 = 2³.3.5
2 4 2