HCF and LCM GCSE questions
HCF and LCM GCSE questions with worked answers. Attempt them first, then check. Full method is on the HCF and LCM lesson.
How to use this page
Cover the answers. Write your working. Then compare. Interactive marking and a personalised plan are on ReviseEasy.
Practice questions
Cover the answers and have a go first. Worked solutions are underneath.
HCF of 8 and 12
LCM of 6 and 8
Write 60 as a product of primes
HCF of 24 and 36
LCM of 9 and 12
Common mistakes
- Mixing up HCF and LCM.
- Missing a repeated prime in the product of primes.
Answers and working
Frequently asked questions
Where is the full lesson?
See HCF and LCM: https://revise-easy.com/gcse-maths/number/hcf-lcm/
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