Least Common Multiple Calculator
Find the LCM of two or more numbers with the work shown.
Least common multiple
60
Greatest common factor
2
Multiples check
60÷4=15 60÷6=10 60÷10=6
The first shared milestone
The LCM is the smallest number every input divides into: buses leaving every 4, 6, and 10 minutes align again after LCM(4,6,10) = 60. Compute it pairwise via a×b ÷ GCF(a,b), folding the result through the list.
Fractions need it
Adding 1/4 + 1/6 requires the least common denominator — which is just the LCM of the denominators (12). Using the plain product (24) also works but forces an extra simplification step at the end.
Frequently asked questions
- How does the Least Common Multiple Calculator work?
- Find the LCM of two or more numbers with the work shown.
- Is the Least Common Multiple Calculator free to use?
- Yes. The Least Common Multiple Calculator is completely free, runs entirely in your browser, and requires no account or sign-up. Your inputs never leave your device.
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