Kenny is thinking of two numbers greater than 10. He 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.
59 exam-style questions on WJEC GCSE Maths Prime Factors, HCF and LCM. Each one has a worked solution and a mark scheme showing where the marks go.