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Prime and Composite Numbers Worksheet 17 Answer Key

Answer key for Prime & Composite Numbers worksheet showing a table with numbers, their factors, and whether they are prime or composite.

Answer key for Prime & Composite Numbers worksheet showing a table with numbers, their factors, and whether they are prime or composite.

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Show Answer Key & Explanations Step-by-step solution for: Prime and Composite Numbers
The table is already complete and correct. Each number has been properly analyzed:

- For each number, all factors are listed.
- Then it’s correctly labeled as “Prime” if it has exactly two factors (1 and itself), or “Composite” if it has more than two factors.

Let’s verify a few to be sure:

- 2: Factors = 1, 2 → Only two → Prime
- 9: Factors = 1, 3, 9 → More than two → Composite
- 23: Factors = 1, 23 → Only two → Prime
- 12: Factors = 1, 2, 3, 4, 6, 12 → Many → Composite
- 5: Factors = 1, 5 → Only two → Prime

All entries match the rules of prime and composite numbers.

Final Answer:
The table is already correctly completed. No changes needed.
Parent Tip: Review the logic above to help your child master the concept of prime and composite numbers worksheet 5th grade.
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