Respuesta :
It's very simple, take a look.
8, 9, 12 | 2
4, 9, 6 | 2
2, 9, 3 | 2
1, 9, 3 | 3
1, 3, 1 | 3
1, 1, 1
2² * 3² *2 = 72
LCM(8,9,12) = 72
8, 9, 12 | 2
4, 9, 6 | 2
2, 9, 3 | 2
1, 9, 3 | 3
1, 3, 1 | 3
1, 1, 1
2² * 3² *2 = 72
LCM(8,9,12) = 72