Explicação passo-a-passo:

Resolução :

B)

9,27,243/3

3, 9,81/3

1,3,27/3

1 1,9/3

1,1,3/3

1,1,1

MMC (9,27,243)= 3^5 = 243

C)

9,24,64/2

9,12,32/2

9,6,16/2

9,3,8/2

9,3,4/2

9,3,2/2

9,3,1/3

3,1,1/3

1,1,1,

MMC (9,24,64)= 2^6. 3² = 64.9 = 576

D)

5,25,60/2

5,25,30/2

5,25,15/3

5,25,5/5

1,5,1/5

1,1,1

MMC (5,25,60)=2².3.5² = 4.3.25= 300

E)

4,8, 16,32/2

2,4,8,16/2

1,2,4,8/2

1,1,2,4/2

1,1,1,2/2

1,1,1,1

MMC (4,8,16,32)= 2^5 = 32

F)

3,9,27,81/3

1,3,9,27/3

1,1,3,9/3

1,1,1,3/3

1,1,1,1

MMC (3,9,27,81)= 3⁴ = 81