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COMPOSITE VS PRIME

Sort numbers into prime and composite categories confidently.

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PRIME VS COMPOSITE NUMBERS

Numbers with exactly 2 factors are prime. Numbers with more than 2 factors are composite. The number 1 is special - it is neither prime nor composite because it has only one factor. Every whole number greater than 1 is either prime or composite.

Sort: 4, 7, 9, 11, 15, 17

1Prime: 7, 11, 17 (2 factors each)

2Composite: 4, 9, 15 (more than 2 factors)

3Special: 1 is neither!

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LEADER TIP

Sorting activities work brilliantly. Give students number cards and two hoops: Prime and Composite. Discuss the tricky ones.

BEFORE THIS LESSON, TRY

🔑What Are Primes?

PRACTICE WITH THESE GAMES

🔎Prime Hunt 🔍Factor Finder 🎈Number Balloons

Want more practice? Generate printable worksheets with similar problems.

Go to Worksheets

COMPOSITE VS PRIME

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