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0580/13 May/Jun 2021, Question 9: Cube Numbers

Cambridge IGCSE Mathematics 0580 · Paper 13 (Core) · Calculator · 2 marks

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The question, in short

From the list 12, 18, 29, 49, 91, 125, identify one cube number and one prime number.

Summarised in our own words. Use the official paper for the exact wording and any diagrams.

Part (a) · 1 mark

Choose a number from the list that is a cube number.

  1. 1125 = 5 × 5 × 5 = 5³, so 125 is a cube number

Answer125

Part (b) · 1 mark

Choose a number from the list that is prime.

  1. 129 has only factors 1 and 29, so 29 is prime

Answer29

Stuck on a step? Read the free lesson: Cube Numbers

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