← Back to Class 5🔒
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Class 5 · Topic 3
Factors, Multiples, HCF & LCM
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Step 1 · Learn
Read the ideas
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Factors
Factors of 12: 1, 2, 3, 4, 6, 12.
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Multiples
Multiples of 4: 4, 8, 12, 16, … (forever).
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Prime Factorisation
72 = 2 × 2 × 2 × 3 × 3 = 2³ × 3².
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HCF
HCF of 12 and 18 = 6. Use it for equal-share problems.
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LCM
LCM of 4 and 6 = 12. HCF × LCM = a × b.
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HCF & LCM Word Problems
Does the answer fit into the numbers, or do they fit into it?
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Step 2 · Practice
Try the quests
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Step 3 · Boss Battle
Beat the boss
🛡️ 🛡️ 🛡️ 3 shields — lose all → 60-second cooldown
Round 1
Factors
🔒Round 2
Multiples
🔒Round 3
Prime Factorisation
🔒Round 4
HCF
🔒Round 5
HCF & LCM Word Problems
🔒Round 6
LCM
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