0580/42 Feb/Mar 2025, Question 1: Prime Numbers
Cambridge IGCSE Mathematics 0580 · Paper 42 (Extended) · Calculator · 1 mark
اقرأ هذا الحل مشروحاً بالعربي ←
The question, in short
Identify a prime number that divides 28 exactly.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 1 mark
- 128 = 2 × 2 × 7
- 2Prime factors: 2 or 7
Answer2 or 7
Stuck on a step? Read the free lesson: Prime Numbers
Practise more prime numbers questions
Real 0580 past-paper questions, marked on your working like the exam, with a worked solution for every part.
Practise free on LemmaraMore past-paper questions on prime numbers
Also searched as: 0580/42/F/M/25 · 0580_m25_qp_42 · 0580 m25 42 · question 1.
Lemmara is an independent study tool, not affiliated with or endorsed by Cambridge International Education. The worked solutions are Lemmara’s own.