0580/22 Feb/Mar 2021, Question 11: HCF and LCM
Cambridge IGCSE Mathematics 0580 · Paper 22 (Extended) · Calculator · 2 marks
اقرأ هذا الحل مشروحاً بالعربي ←
The question, in short
Find the highest common factor of 36 and 84.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 2 marks
- 136 = 2² × 3²
- 284 = 2² × 3 × 7
- 3HCF = 2² × 3 = 12
Answer12
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: 0580/22/F/M/21 · 0580_m21_qp_22 · 0580 m21 22 · question 11.
Lemmara is an independent study tool, not affiliated with or endorsed by Cambridge International Education. The worked solutions are Lemmara’s own.