The Power of Primes: How to Find The Least Common Multiple using Prime Factorisation (GCSE Maths)

In this video, I show you how to find the least common multiple of a pair of numbers by breaking them down into their prime factors and correctly categorising them within venn diagrams. Once these prime factors have been stored within a venn diagram, we can then multiply them by each other to derive the correct result. As a bonus, I demonstrate how you can double check your final result with the use of the graphing app, Desmos.

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