What you need to know
Check yourself against these “I can” statements.
- I can write a number as a product of its prime factors
- I can use prime factors or a Venn diagram to find the highest common factor (HCF) of two numbers
- I can find the lowest common multiple (LCM) of two numbers
- I can use HCF and LCM to solve problems
Practise this topic
2 resourcesPrime Decomposition
Products of prime factors (of a number, of a product such as 40 × 63, and of a number in prime factor form times or divided by a small number, like 2⁴ × 3⁵ × 5 ÷ 9), HCF and LCM from (and using) prime decomposition for two and…
⬢ BlockbustersPrime Decomposition Blockbusters
Blockbusters with the questions from the Prime Decomposition worksheet: choose its levels for the ordinary hexagons and for the harder ★ ones. Show the answer and the worked solution, or play against the computer with multiple…
These are the pages for HCF and LCM in the GCSE + AQA Further Maths scheme of work, following Pearson Edexcel GCSE (9–1) Higher (1MA1), plus AQA Level 2 Further Mathematics (8365). Open this topic in Mr Wells Maths to see it alongside the rest of the course.