Question

calcule o m.m.c (12,15,21)

Answer 1

Acho que dá 1260. 
12,15,21_ 2
6,15,21_2
3,15,21_3
1, 5, 21_5
    1, 21_21
         1 
No final multiplica os números ao lado: 2x2x3x5x21

Answer 2

12, 15, 21 | 2

6, 15, 21 | 2

3, 15, 21 | 3

1, 5, 7 | 5

1, 1, 7 | 7

1, 1, 1 | 1

MMC = 2 . 2 . 3 . 5 . 7 = 420

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