What is the Factor Calculator?
List all the factors of a whole number and its factor pairs.
Enter whole number and the Factor Calculator returns factors, number of factors, prime factorisation and sum of factors. Results update as you type, and nothing you enter leaves your device.
How it is calculated
A factor divides the number with no remainder
How to use it
- Enter whole number.
- Read factors in the results panel. It updates as you type.
- Change any value to compare scenarios, or use Share to send the result as a link.
Worked example
Common questions
What formula does the Factor Calculator use?
It uses: A factor divides the number with no remainder.
What do I need to use the Factor Calculator?
You need whole number. Sensible starting values are filled in so you can see how it works straight away.
Is the Factor Calculator free, and is my data stored?
It is free with no sign-up. The calculation runs in your browser, so the values you enter are not sent to or stored on our server.