0580/32 May/Jun 2026, Question 22: HCF and LCM
Cambridge IGCSE Mathematics 0580 · Paper 32 (Core) · Calculator · 2 marks
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The question, in short
Find the lowest common multiple of 54 and 90.
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Solution · 2 marks
- 154 = 2 × 3³
- 290 = 2 × 3² × 5
- 3LCM = 2 × 3³ × 5 = 270
Answer270
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