Here we have a collection of videos to help GCSE Maths students learn how to find the highest common factor (HCF) and lowest common multiple (LCM).
We also have a Highest Common Factor Calculator and a Least Common Multiple Calculator. Use them to check your answers.
More GCSE Math Lessons
HCF & LCM Worksheets
Factor and Fraction Games
The following Highest Common Factor Calculator will help you find the HCF of two numbers. It also shows the prime factorization.
The following Least Common Multiple Calculator will help you find the LCM of two numbers. It also shows the prime factorization.