Kenny says: "The highest common factor (HCF) of my two numbers is 7. The lowest common multiple (LCM) of my two numbers is 84". Write down the two numbers that Kenny is thinking of.
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Markscheme
Prime Factors, HCF and LCM Questions
16 exam-style questions on Edexcel IGCSE Maths Prime Factors, HCF and LCM. Each one has a worked solution and a mark scheme showing where the marks go.