Question

Which two consecutive even numbers have a LCM of 180?

Answer 1

Answer:

18 and 20

Factories both

18=2*3*3

20=2*2*5

Common factor *uncommon factor

2*3*3*2*5=180

So LCM of 18, 20=180

Answer 2

Answer:

two even numbers are 18 and 20