Least Common Multiple Calculator
Enter two numbers to find their least common multiple (LCM). Useful for adding fractions with different denominators and solving scheduling problems.
LCM
Enter values to calculate
How to Use the LCM Calculator
1
Enter the first number.
2
Enter the second number.
3
View the least common multiple.
Frequently Asked Questions
What is the LCM?
The least common multiple is the smallest positive number that is divisible by both input numbers.
How are LCM and GCD related?
LCM(a, b) = |a × b| / GCD(a, b). They are inversely related.
When do I need the LCM?
Use LCM when adding fractions with different denominators or finding when two repeating events coincide.