Grade 5/Factoring
Is it a Factor? (1143)
Determine if a number is a factor of another number.
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Quick Tip
Check if the second number can be divided by the first number without a remainder.
Teacher Resources
Teaching Notes
This is a quick check for understanding. Encourage mental math.
Vocabulary
Factor: A number that divides another number exactly.
Remainder: What is left over after division.
Common Mistakes
- Guessing
- Confusing factor and multiple definitions
- Confusing factors with multiples
- Incorrect division calculations
- Not checking all possible divisors
Differentiation
SupportUse a calculator to check division.
ChallengeExplain WHY it is or isn't a factor.
Discussion Questions
- If a number ends in 0, what factors do we know it has for sure?
- What does it mean for a number to be a factor?
- How can you determine if a number is a factor?
- How are factors related to multiplication?
- Can numbers have more than two factors?
Extension Activities
- Create your own True/False quiz for a partner.
Parent Tip
Ask if a group of items can be split evenly into smaller groups.
Learning Path
Skill Cluster
Number Sense & Operations
Estimated Time
10 minutes
Skills Practiced
verifying factors
Prerequisites
- 1140
- Multiplication Facts (0-12)
- Basic Division
Next Steps
- Multiples
- Prime and Composite Numbers
- Greatest Common Factor (GCF)
- Understanding Multiples
- Finding Common Factors