Basic Math
LCM and HCF
Enter two or more positive whole numbers separated by commas. The tool breaks each number into its prime factors and uses them to build both the highest common factor and the lowest common multiple.
InputsLCM · HCF
Step-by-step
waitingFill in the fields and press Solve. The full method will appear here, one numbered step at a time.
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Related formulas
Explained with worked examples in the Formula Library.