HCF/LCM - GCSE Maths

A video explaining how to find the highest common factor (HCF) and lowest common multiple (LCM) of two or more numbers. This is suitable for both higher and foundation GCSE.

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0:00 Intro
0:10 Finding the HCF
2:54 Finding the LCM
4:20 Contextual Examples
8:57 Using Prime Factorisation
13:45 Using numbers that are already prime factorised

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