Friday, 11 November 2022

Unit 3 - Using factorisation to find the LCM and HCF


Hello, hello!

We've practised a lot, but I wanted to share some more resources for you to reinforce how to find the Least Common Multiple and the Highest Common Factor through factorisation.







Here you have the information on how to use factorisation to find the Least Common Multiple:


STEP 1 - Find the prime factors of the numbers given and express them in powers. 




STEP 2 - The LCM is the result of multiplying ALL the factors with the highest exponents from both lists. 



Remember that you need to take EVERY FACTOR!

















Here you have the information on how to use factorisation to find the Greatest Common Factor:







Remember only to take the common factors!














I hope you find these useful!

Bye, bye, butterflies! 🦋

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