Introduction into HCF, LCM using prime factor decomposition

Used with a middle set year 9 class, starting the new GCSE curriculum.
Starts with how to use prime factor trees to write a number as a product of its prime factors, then onto how to use that to find the HCF and LCM of two numbers.
Includes starter, learning objectives page, differentiated questions with answers and learning objective tick sheets!
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  • 4.9prime-hcf-lcm(new).pptx

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Created: Aug 25, 2016

Updated: Apr 16, 2018

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4.9prime-hcf-lcm(new)

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