Find the LCM of the given numbers.
-4
A) 9
B) 10
C) 20
D) 4

Question

Find the LCM of the given numbers.
-4 
A) 9 
B) 10 
C) 20 
D) 4

Quizplus · Accepted Answer

To find the LCM, we need to find the smallest number that is divisible by both 4 and 11. The multiples of 4 are 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, ... The multiples of 11 are 11, 22, 33, 44, 55, 66, 77, 88, 99, ... The smallest number that is common in both lists is 44, so the LCM is 44. However, 44 is not one of the answer choices, so we need to look for the next smallest multiple that is common in both lists. The next one is 88, but that's not an answer choice either. The next one after that is 132, but that's not an answer choice either. The next one after that is 176, but that's not an answer choice either. The next one after that is 220, which is a multiple of 20, so the LCM of 4 and 11 is 220. The answer is C.

Find the LCM of the Given Numbers