Respostas

2014-05-04T20:58:09-03:00
18, 21 /2
9  ,21 /3
3  , 7 /3
1  , 7 /7
1  , 1 ------ 2x3x3x7 = 126
2014-05-04T21:41:40-03:00
18,21_2
9,21_3
3,7_3
1,7_7
1,1_
      =126
MMC de 18,21 e 126