About the GCD and LCM Calculator
GCD and LCM uses the Euclidean algorithm across a list of integers. Absolute values are used for divisibility, and the least common multiple is calculated progressively with overflow-safe BigInt arithmetic.
How to use the GCD and LCM Calculator
- Enter two or more whole numbers.
- Calculate their shared divisor and multiple.
- Use GCD for simplification or LCM for repeating-cycle alignment.
Practical tips
- The LCM of any list containing zero is zero.
- Negative signs do not change divisibility results.