Free Quiz with Answers on Common Multiples and Least Common Multiples (LCM) of Numbers
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Answer these questions and check your answer by clicking the Answer button.
1. What are the common multiples of 3 and 4 that are less than 50?
2. What is the next common multiple of 4 and 6?
12, 24, 36, 48, 60, ____
a) 64
b) 68
c) 72
d) 76
3. 24 is a common multiple of 8 and 10.
a) True
b) False
4. Find first three common multiples of 3 and 10.
5. All Common Multiples of 2 and 3 are multiples of ________.
a) 2
b) 3
c) 6
d) All of the above
6.
.webp "Quiz on Common Multiples and LCM of Numbers")
LCM of 5 and 10 is:
a) 5
b) 10
c) 15
d) 20
7. Least Common Multiple (LCM) of 10 and 20 is ____.
a) 10
b) 20
c) 30
d) 40
8. Least Common Multiple (LCM) of 5 and 6 is ____.
a) 5
b) 20
c) 30
d) 60
9. 21 is the LCM of which of the following two numbers?
a) 10 and 11
b) 3 and 7
c) 2 and 1
d) 9 and 12
10. LCM of 7 and 7 is ____.
a) 7
b) 14
c) 49
d) None of the above
11. Two numbers have Least Common Multiple(LCM) of 63. The two numbers add up to 16. Find the two numbers.
12. Least Common Multiple(LCM) of 4 and 10 is _____.
a) 4
b) 10
c) 14
d) 20
13. LCM of 8 and 12 is _____.
a) 8
b) 12
c) 16
d) 24
14. LCM of 10 and 15 is _____.
a) 10
b) 15
c) 25
d) 30
15. LCM of 7 and 8 is _____.
a) 16
b) 28
c) 48
d) 56
16. LCM of 2 and 20 _____.
a) 20
b) 40
c) 60
17. LCM of 3, 4, 6 is ____.
a) 12
b) 18
c) 24
d) 72
18. Least Common Multiple(LCM) of 18, 9, 4 is _____.
a) 18 × 9 × 4 = 648
b) 3 × 2 × 3 × 2 = 36
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