Factor Calculator
Find all factors, prime factorization, and greatest common divisor (GCD)
Factors
GCD/LCM
Info
What are Factors?
Factors are numbers that divide evenly into another number. For example, the factors of 12 are 1, 2, 3, 4, 6, and 12 because each of these numbers divides 12 without a remainder.
Prime Factorization
Prime factorization is the process of finding which prime numbers multiply together to make the original number. For example, the prime factorization of 12 is 2² × 3.
Greatest Common Divisor (GCD)
The GCD is the largest positive integer that divides each of the given integers without a remainder. For example, the GCD of 12 and 18 is 6.
Least Common Multiple (LCM)
The LCM is the smallest positive integer that is divisible by all of the given integers. For example, the LCM of 4 and 6 is 12.
How to Use This Calculator
- Factors Tab: Enter a positive integer to find all its factors and prime factorization.
- GCD/LCM Tab: Enter two or more positive integers to find their greatest common divisor and least common multiple.
- Use the "Download as PDF" button to save your results.