Question : The least common multiple of a and b is 42. The LCM of 5a and 11b is:

Option 1: 2310

Option 2: 4620

Option 3: 210

Option 4: 462

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 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 LCM of 165, 176, 385 and 495 is k. When k is divided by the HCF of the numbers, the quotient is p. What is the value of p?

Option 1: 2520

Option 2: 5040

Option 3: 6720

Option 4: 3360