GCD & LCM Calculator
Find the greatest common divisor (GCD) and least common multiple (LCM) of any list of integers.
How GCD and LCM are computed
GCD uses the Euclidean algorithm. LCM is computed pairwise: lcm(a, b) = |a ร b| / gcd(a, b).
Frequently Asked Questions
Is the GCD & LCM Calculator free to use?
Yes, the GCD & LCM Calculator is 100% free to use. There are no subscriptions, no sign-ups, and no hidden fees.
Is my data safe when using the GCD & LCM Calculator?
Absolutely. All calculations performed by the GCD & LCM Calculator happen locally in your web browser. We do not store, track, or transmit your inputs or results to any server.
How accurate is the GCD & LCM Calculator?
Our GCD & LCM Calculator uses industry-standard formulas and methodology. You can view the exact formula and calculation logic used in the methodology section above to verify the math yourself.
Can I use the GCD & LCM Calculator on my mobile phone?
Yes! The GCD & LCM Calculator is fully responsive and works seamlessly on all devices including smartphones, tablets, and desktop computers.