It would take a long time to write out all the factors and multiples of 24 and 180 and compare the lists and it would be easy to make a mistake. A more efficient method is to use prime factors. Using ...

Click to explore updated revision resources for GCSE Maths: HCF and LCM using prime numbers, with step-by-step slideshows, quizzes, practice exam questions, and more! It would take a long time to ...