Question

Qual é o MMC de (42,54,60)?

Answer 1

42,54,60     2
21,27,30     2
21,27,15     3
7,9,5           3
7,3,5           3
7,1,5           5
7,1,1           7
1,1,1

=2.2.3.3.3.5.7
=3780   mmc= 3780

Answer 2

42-54-60|2
21- 27-30|2
21- 27- 15|3
07-09-05|3
07-03-05|3
07-01-05|5
07-01-01|7
01-01-01|

m.c.m = 2 x 2 x 3 x 3 x 3 x 5 x 7
m.c.m = 4 x 3 x 3 x 3 x 5 x 7
m.c.m = 12 x 3 x 3 x 5 x 7
m.c.m = 36 x 3 x 5 x 7
m.c.m = 108 x 5 x 7
m.c.m = 540 x 7
m.c.m = 3.780