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 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 : Let x = 224 and y = 322. If the highest common factor of 23x and a × y is divisible by x and y, then what can be the possible value of a?

Option 1: 16

Option 2: 8

Option 3: 12

Option 4: 4

Question : Which of the following numbers leaves the remainder equal to the highest common factor of 6, 8, and 9, when divided by 6, 8 and 9?

Option 1: 291

Option 2: 575

Option 3: 506

Option 4: 433

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

Option 1: 5040

Option 2: 3360

Option 3: 2100

Option 4: 4560