0580/32 May/Jun 2026, Question 6: Prime Numbers
Cambridge IGCSE Mathematics 0580 · Paper 32 (Core) · Calculator · 1 mark
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The question, in short
Explain why 39 is not a prime number.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 1 mark
- 139 = 3 × 13
- 2So 39 has factors other than 1 and itself (3 and 13), so it is not prime
AnswerA correct reason e.g. 3 is a factor of 39 (3 × 13 = 39)
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Also searched as: 0580/32/M/J/26 · 0580_s26_qp_32 · 0580 s26 32 · question 6.
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