How to use this lcm calculator
Enter the values requested above and select Calculate. Change any input to compare another scenario. The calculation runs locally in your browser and does not require an account.
Formula and method
Example
LCM(12, 18) = 36.
Tips for a useful result
LCM is useful for common denominators, repeating schedules and periodic events.
What this calculator is useful for
Find the least common multiple of two or more whole numbers. The result is intended for quick estimates, checking arithmetic and comparing scenarios. When a result affects a contract, tax filing, medical decision, building-code requirement or other high-stakes situation, verify the result with the appropriate professional or authoritative source.
Frequently asked questions
What does the LCM Calculator calculate?
Find the least common multiple of two or more whole numbers.
How does the LCM Calculator work?
For two nonzero integers a and b, LCM(a,b) = |a×b| ÷ GCD(a,b). Apply the operation repeatedly for more values.
Is the LCM Calculator free to use?
Yes. ERICH Calculators is free to use and does not require an account.