Least Common Multiple (LCM) Calculator — Find LCM of Any Numbers

Least Common Multiple (LCM) Calculator

Calculate the Least Common Multiple of two or more numbers. Find the smallest positive integer that is divisible by all entered numbers. Ideal for students, teachers, and math problems.

Step 1: Enter Numbers

What is LCM?

The Least Common Multiple (LCM) of a set of numbers is the smallest number that is a multiple of each number in the set. For example, LCM of 4 and 6 is 12.

Step 2: Options

About LCM Calculation

You can compute LCM using prime factors: take the highest power of each prime that appears. Or use the formula LCM(a,b) = |a·b| / GCD(a,b).

LCM Results

Summary
Prime Factors
Exponents Chart

Least Common Multiple (LCM)

12
of 4 and 6
GCD (Greatest Common Divisor)
2
Product of numbers
24
LCM / GCD
6
Number count
2

Prime Factorizations

Number Prime Factorization Exponents

Prime Exponents in LCM

Each prime’s highest exponent among the numbers

Need Step-by-Step Math Help?

Connect with our math tutors for personalized assistance with LCM, GCD, prime factorization, and more. Get clear explanations and boost your understanding.

Get Math Tutoring