Sometimes you are given numbers expressed as a product of prime factors. For example, 8 = 2 3 and 90 = 2 × 3 2 × 5. If you want to find the LCM and HCF in an exam, we can use prime factor form ...

Learn about and revise different types of numbers such as primes, factors, multiples and powers with GCSE Bitesize AQA Maths.