How is LCM different from GCD?

LCM finds the smallest number that all given numbers divide into, while GCD (Greatest Common Divisor) finds the largest number that divides into all given numbers. They're related: LCM(a,b) × GCD(a,b) = a × b.

How do I find LCM of fractions?

For fractions, LCM of numerators divided by GCD of denominators gives the LCM of the fractions. However, it's more common to find LCM of denominators to add fractions.

What if one number is a multiple of another?

If one number is a multiple of another, the LCM is the larger number. For example, LCM(6, 12) = 12 because 12 is already a multiple of 6.

Can I find LCM of more than two numbers?

Yes! You can find LCM of any number of values. The calculator handles multiple numbers by finding LCM progressively: LCM(a,b,c) = LCM(LCM(a,b),c).

LCM Calculator – Least Common Multiple

Find the least common multiple (LCM) of two or more numbers. Essential for fraction operations, scheduling, and mathematical problem solving.

LCM Calculator – Least Common Multiple

Find the least common multiple (LCM) of two or more numbers. Essential for fraction operations, scheduling, and mathematical problem solving.

Numbers*

Enter numbers separated by commas

📐

Math visualization will appear here

Understanding Least Common Multiple

The Least Common Multiple (LCM) is the smallest positive number that is divisible by all given numbers. It's essential for adding fractions, solving scheduling problems, and finding common denominators.

Applications of LCM

Common uses for LCM:

Adding and subtracting fractions (finding common denominators)
Scheduling problems (when events repeat at different intervals)
Gear ratios and mechanical systems
Music theory (rhythm and beat patterns)
Computer science (algorithm optimization)
Project planning and resource allocation

How to Use This Calculator

Follow these simple steps to get accurate results:

Enter your numbers
Click the "Calculate" button to see your results
Review the detailed breakdown and explanation

Why Use Our LCM Calculator – Least Common Multiple?

100% free and no registration required
Instant, accurate calculations with professional formulas
Mobile-friendly design that works on any device
Privacy-focused - your data never leaves your browser
Educational content to help you understand the results

Frequently Asked Questions

Related Calculators

Scientific Calculator – Advanced Math Functions

Math

Advanced scientific calculator with trigonometric functions, logarithms, exponentials, and complex mathematical operations. Perfect for students, engineers, and professionals.

1 inputsCalculate→

Fraction Calculator – Add, Subtract, Multiply, Divide

Math

Add, subtract, multiply, and divide fractions with our comprehensive fraction calculator. Simplify fractions, convert between mixed numbers and improper fractions, and get step-by-step solutions.

5 inputsCalculate→

Percentage Calculator – Calculate Percentages, Discounts, & Changes

Math

Calculate percentages, percentage changes, discounts, and more with our free online percentage calculator. Quick and accurate results.

3 inputsCalculate→