0580/12 May/Jun 2025, Question 18: HCF and LCM
Cambridge IGCSE Mathematics 0580 · Paper 12 (Core) · Non-calculator · 2 marks
اقرأ هذا الحل مشروحاً بالعربي ←
The question, in short
Find the highest common factor of 66 and 110.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 2 marks
- 166 = 2 × 3 × 11
- 2110 = 2 × 5 × 11
- 3HCF = 2 × 11 = 22
Answer22
Stuck on a step? Read the free lesson: HCF and LCM
Practise more hcf and lcm 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 hcf and lcm
Also searched as: 0580/12/M/J/25 · 0580_s25_qp_12 · 0580 s25 12 · question 18.
Lemmara is an independent study tool, not affiliated with or endorsed by Cambridge International Education. The worked solutions are Lemmara’s own.