Videos, examples and solutions to help GCSE Maths students learn how to find the highest common factor (HCF) and lowest common multiple (LCM).
The following diagram shows how use Repeated Division to find the HCF and LCM.
How to work with HCF and LCM?
How to work out the Highest Common Factor and Lowest Common Multiple using factorisation and short division?
Using Prime factorisation for HCF and LCM (Recap) GCSE Maths revision help
Product of primes to find HCF and LCM, GCSE Maths revision Exam paper practice
Prime Factorisation and HCF, LCM GCSE Maths revision Exam paper practice & help
How to work out HCF and LCM using short division
How to work out the Highest Common Factor and Lowest Common Multiple using short division. Useful for quick calculations where a factor tree isn’t required. GCSE level C.
Examples from Edexcel IGCSE past papers on finding prime factorisations, HCF (highest common factor) and LCM (lowest common multiple)
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