Free online GCD (Greatest Common Divisor) calculator using the Euclidean algorithm. Support batch calculation of GCD for multiple numbers. No signup required.
Zero dependencies Β· Works offlineπ Result Chart
About GCD Calculator
This GCD calculator computes the Greatest Common Divisor of 2 to 20 positive integers using the efficient Euclidean algorithm. It handles large numbers with BigInt precision and visualizes the input values in a bar chart. Ideal for students, developers, and anyone working with fractions or ratios.
FAQ
What is GCD?
The Greatest Common Divisor (GCD) is the largest positive integer that divides all given numbers without remainder. Example: GCD(12,18) = 6.
What algorithm is used?
The Euclidean algorithm, the most efficient classical algorithm for computing GCD, with time complexity O(log min(a,b)).
How many numbers can I input?
Supports 2 to 20 numbers. Simply separate numbers with commas or spaces.