This video explains how to find the lowest common multiple of two or more numbers, using two methods: listing the multiples and using prime factorisation. Practice questions and answers are at the end of the video.
For a refresher on multiples: https://youtu.be/pEy8QKEBL_M
For a refresher on prime factors: https://youtu.be/Bphq-n84ouM
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00:00 Intro
00:27 What does lowest common multiple mean
01:00 Method 1: Listing the multiples
01:29 Method 2: Using prime factorisation
01:54 Example
02:13 Practice questions and answers
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