METHODCalculation, assumptions and sources
Formula used
gcd(a,b)=gcd(b,a mod b); lcm(a,b)=|ab|/gcd(a,b)
What is included
Factor integers into primes and calculate their greatest common divisor and least common multiple.
Assumptions and limits
Inputs are treated as finite real numbers; rounding and model choices are shown with the result.
Reference sources
NIST Engineering Statistics Handbook
Last reviewed: September 2026Prime Factor, GCD & LCM Calculator
Factor integers into primes and calculate their greatest common divisor and least common multiple.
Enter the required values or content, adjust the options and then review the detailed result.
FAQFrequently asked questions
What can I do with Prime Factor, GCD & LCM Calculator?
Factor integers into primes and calculate their greatest common divisor and least common multiple.
How do I use Prime Factor, GCD & LCM Calculator?
Enter the required values or content, adjust the options and then review the detailed result.
Are my data uploaded?
No. Inputs and files for this tool are processed locally in your browser.
Is this tool free?
Yes. Every feature is free and requires no registration.
Does it work on mobile?
Yes. The interface is optimized for iPhone, Android, tablets and desktop computers.