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A factor divides a number exactly: 6 is a factor of 24. A multiple is in the number’s table: 24 is a multiple of 6. The HCF of two numbers is their highest common factor, and the LCM is their lowest common multiple. A prime number has exactly two factors, 1 and itself.
✓ You passed this lesson’s test.
List and match — “list the factors (or multiples) of both numbers and find the common ones”
Use it for: Packing things into equal groups, timing events that repeat, and the factors and multiples chapter of Class 5 maths.
Check: 18 ÷ 6 = 3 and 24 ÷ 6 = 4, and 3 and 4 share no factor except 1 ✓
▶ Watch it animatedWork it out in your head or on paper, type the answer and press Check. Stuck? Press “Show me how”.
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20 sums. Check each answer, then go to the next one. Get 16 or more right to pass.
🏅 Sign in with Google to earn the 🧲 HCF-LCM Hunter badge when you pass — and a certificate when you finish all 8 lessons of Part 5 · Class 5. You can still take the test without signing in.
Why does it work? When should you use it? Ask in English, मराठी or हिंदी.
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