Question

Calcule o mmc,decompondo cada número em fatores primos de:a)6,9 e 8b)3,4 e 12c)20 e 30d)4,6,8 e 10e)12 e 10f)6,8 e 18

Answer 1

a)
6, 9, 8: 2
3, 9, 4: 2
3, 9, 2: 2
3, 9, 1: 3
1, 3, 1: 3
1, 1, 1

mmc= 2³.3² = 72
b)
3, 4, 12: 2
3, 2, 6 :2
3, 1, 3 : 3
1, 1, 1 

mmc= 2².3 =12 

c)
20, 30: 2
10, 15: 2
5 , 15 : 3
5, 5 :5
1, 1

mmc= 2².3.5 = 60

d)
4, 6, 8, 10: 2
2, 3, 4, 5: 2
1, 3, 2, 5: 2
1, 3, 1, 5: 3
1, 1, 1, 5: 5
1, 1, 1, 1

mmc= 2³.3.5 = 120
e)
12, 10: 2
 6, 5 :2
 3, 5: 3
 1, 5: 5
 1, 1 

mmc= 2².3.5 = 60
f)
6, 8, 18 : 2
3, 4, 9 :2
3, 2, 9 :2
3, 1, 9 :3
1, 1, 3 :3
1,1, 1 

mmc= 2³.3² = 72