Least Common Multiple (LCM) Calculator

The Least Common Multiple (LCM) of two or more integers is the smallest positive integer that is divisible by each of them. It's a common calculation when you need to find a common denominator for fractions. Enter your numbers below.

Enter Your Numbers

Calculation Result

Least Common Multiple: 0

How It's Calculated

The LCM can be found using the Greatest Common Divisor (GCD). The formula for the LCM of two numbers, a and b, is:

LCM(a, b) = (|a × b|) / GCD(a, b)

To find the LCM of more than two numbers (e.g., a, b, and c), the process is repeated:

LCM(a, b, c) = LCM( LCM(a, b), c )

This calculator applies this method iteratively to the entire set of numbers you provide.