Least Common Multiple Calculator
Find LCM of number sets for scheduling cycles and fraction denominators. Sync 4-day and 6-day rotas every 12 days — free, local, no signup.
How to Use the Least Common Multiple Calculator
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Frequently Asked Questions
When do 4-day and 6-day cycles align?
Every 12 days (LCM of 4 and 6) — rosters, maintenance windows, and billing cycles sync on multiples. Enter periods to find convergence.
LCM for fractions?
Common denominators are LCMs of denominators: 1/4 + 1/6 needs denominator 12. Fraction homework starts here.
Large sets?
Multiple numbers fold pairwise like GCF. Prime powers dominate — include each prime's max exponent once.
Do multiple sets upload?
No — math runs locally in your browser. Numbers never leave your device.
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Last updated October 2026