Least Common Multiple (LCM) Worksheet
Practice finding the least common multiple (LCM) for pairs of numbers.
Includes
Fill in the BlanksShort AnswerMultiple ChoiceTrue / False
Standards
CCSS.MATH.CONTENT.4.OA.B.4
Topics
mathgrade 4lcmleast common multiplenumber sensenumber theory
6 sections · Free to use · Printable
Least Common Multiple (LCM)
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Date:
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Read each question carefully and find the least common multiple (LCM) for the given numbers.
1. Find the LCM of 3 and 5:
2. Find the LCM of 4 and 6:
3. Find the LCM of 2 and 7:
4. Explain in your own words what the 'least common multiple' means.
5. A factory produces red shirts every 4 days and blue shirts every 6 days. If they produced both colors today, how many days until they produce both colors again?
6. Which of the following is the LCM of 8 and 12?
a
4
b
24
c
36
d
48
7. What is the LCM of 5 and 10?
a
5
b
10
c
15
d
20
8. The LCM of two prime numbers is always their product.
T
True
F
False
9. The LCM of 6 and 9 is 18.
T
True
F
False