Answer:

1.)6×2,3×4,3×2×2

2.)9×2,3×3×2

3.)3×3×3×2×2×2

4.)3×2×5

4.)60×2,6×5,

Answer:

The answer is 6

Step-by-step explanation:

6x2 = 12

6x3 = 18

6x4 = 24

6x5 = 30

6x20 = 120