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HCF & LCM




 
Videos, examples and solutions 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.

Related Topics:
More GCSE Math Lessons, HCF & LCM Worksheets, Fraction Worksheets, Factor and Fraction Games

GCSE Tutorial, HCF and LCM, Highest Common Factor, Lowest Common Multiple.
HCF and LCM
How to work out HCF and LCM using short division.



Watch this GCSE maths revision lesson on Highest Common Factor (HCF) and Lowest Common Multiple (LCM).
HCF and LCM part 1 of 2.


 
HCF and LCM part 2 of 2
Using a Venn diagram method to find LCM and HCF.


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.


Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.


You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.


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