0580/13 May/Jun 2023, Question 10: Prime Numbers
Cambridge IGCSE Mathematics 0580 · Paper 13 (Core) · Calculator · 1 mark
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The question, in short
Decide whether Olga is right that 87 is prime and justify the decision with a reason.
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Solution · 1 mark
- 187 = 3 × 29
- 2No, because 87 divides by 3
AnswerNo, 87 divides by 3
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