GCD and LCM Calculator
Enter two numbers to instantly calculate their greatest common divisor (GCD) and least common multiple (LCM).
GCD
LCM
Pourquoi utiliser cet outil ?
GCD and LCM show up in fraction simplification, scheduling problems and math homework. This tool computes both instantly using the Euclidean algorithm, directly in your browser.
Why it's free
A discreet ad banner covers hosting costs — that's the whole business model. No account to create, no usage limit, no paid tier unlocking the real result. Calculations run in your browser, so your numbers, dates and text never leave your device.
How our tools work