GCD & LCM Calculator

Free GCD and LCM calculator with Euclidean algorithm steps. Calculate for multiple numbers at once — 100% client-side. 100% serverless.

🔒 100% Private

⚡ Completely Free

🌐 Runs in Browser

📦 Export Ready

Calculate the Greatest Common Divisor and Least Common Multiple for any set of numbers with step-by-step Euclidean algorithm display.

Features

All calculations run in your browser.

Frequently Asked Questions

The Greatest Common Divisor is the largest number that divides all given numbers evenly.

The Least Common Multiple is the smallest number that is a multiple of all given numbers.

Yes. Enter as many comma-separated numbers as you need.

Yes. 100% in your browser.