Find Common Multiples
Browse 0 free printable Find Common Multiples worksheets for Third Math. These Factoring worksheets are designed to give students targeted practice and build confidence in math.
Worksheets are available at multiple difficulty levels — Easy, Medium, and Hard — so you can meet every student where they are. Each worksheet is an instant PDF download: print as many copies as you need for your classroom, tutoring sessions, or home practice at no cost.
Whether you're a teacher looking for factoring practice problems, a homeschool parent building a Third curriculum, or a tutor helping a student catch up, these free printable worksheets are ready to use today.
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Practice Questions
- Common multiples of 2 and 3:
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6, 12
- Common multiples of 3 and 4:
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12, 24
- Common multiples of 2 and 5:
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10, 20
- Common multiples of 4 and 5:
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20, 40
- Common multiples of 2 and 6:
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6, 12
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Quick Tip
Teacher Resources
Teaching Notes
Teach students to list multiples of the larger number first, then check if the smaller number divides into them.
Vocabulary
Common Mistakes
- Multiplying the two numbers and thinking that's the only common multiple
- Confusing factors and multiples
- Arithmetic errors
- Confusing multiples with factors
- Missing the first multiples
- Stopping too early
Differentiation
Discussion Questions
- Is the product of two numbers always a common multiple? (Yes)
- Is it always the smallest common multiple? (No, e.g., 4 and 6)
- What is a multiple of a number?
- How do you find common multiples?
- When are common multiples useful?
- Are there always common multiples for any two numbers?
Extension Activities
- Find common multiples of three numbers (e.g., 2, 3, and 4).
- Word problems involving repeating cycles (e.g., lights flashing).
Parent Tip
Have your child find common multiples using coins (e.g., nickels and dimes).
Learning Path
Skill Cluster
Number Sense
Estimated Time
15 minutes