🔢 LCM Calculator
Calculate least common multiple
How to Use This Calculator
1
Enter Two Numbers
Input two integers to find their LCM (Least Common Multiple).
2
Click Calculate LCM
Press the button to find the least common multiple.
3
View Result
See the LCM value and related GCF.
Formula
LCM(a,b) = (a × b) / GCF(a,b)
Example: LCM(12, 18)
GCF(12, 18) = 6
LCM = (12 × 18) / 6 = 216 / 6 = 36
LCM = 36
About LCM Calculator
The LCM Calculator finds the Least Common Multiple (LCM) of two numbers. LCM is the smallest positive number that is a multiple of both numbers.
When to Use This Calculator
- Fractions: Find common denominators for addition/subtraction
- Mathematics: Solve LCM problems
- Education: Learn least common multiple concepts
Why Use Our Calculator?
- ✅ Fast Calculation: Uses GCF relationship
- ✅ Instant Results: Calculate LCM immediately
- ✅ Educational: Learn LCM concepts
- ✅ Completely Free: No registration required
Frequently Asked Questions
What is LCM?
Least Common Multiple is the smallest number divisible by both numbers. Example: LCM(12, 18) = 36.
How is LCM calculated?
Using LCM(a,b) = (a × b) / GCF(a,b). First find GCF with Euclidean algorithm, then calculate LCM.
What's the relationship between GCF and LCM?
GCF(a,b) × LCM(a,b) = a × b. This relationship makes calculation efficient.