G7 Lesson 5 — Prime / Composite & Factors
Answer lesson questions: prime or composite, number of factors, smallest/largest factor, and prime factor checking. Choose level (Easy/Medium/Hard).
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Tips
• Prime number: exactly 2 factors (1 and itself)
• Composite: more than 2 factors
• To test prime: check divisibility up to √n
• Factor pairs: if a×b=n then both are factors
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