Question : The least common multiple of 210, 336 and 504 is:

Option 1: 5040

Option 2: 3360

Option 3: 2100

Option 4: 4560

Question : The highest common factor of 108, 72, and 5$a$ is $a$. What can be the least common multiple of 108, 72, and $a$?

Option 1: 432

Option 2: 324

Option 3: 108

Option 4: 216

Question : The least common multiple of 48 and 64 is _____ times the highest common factor of 12 and 18.

Option 1: 28

Option 2: 32

Option 3: 24

Option 4: 16

Question : The least common multiple of 12, 18, and 27 is:

Option 1: 54

Option 2: 216

Option 3: 27

Option 4: 108

Question : The highest common factor of 120, 360, and 210 is:

Option 1: 12

Option 2: 30

Option 3: 3

Option 4: 15