WORKS IN YOUR BROWSER
Free. No account needed.Prime number checker
Check whether an integer is prime and find a divisor when it is composite.
Result
Enter your values. Your result will appear here.
How it works
- Enter the values for your problem.
- Choose Calculate to see the result and calculation details.
- Change an input and calculate again to compare scenarios.
Example & practical use
97 is prime; 91 is divisible by 7.
What to know
Accepts integers between 0 and 1,000,000,000,000.
Are my files or inputs uploaded?
Image and text processing happens in your browser. Your files are not uploaded to our servers.
Found an issue?
We are improving this alpha release. Tell us the tool, your device and the expected result through the contact page. You do not need to share private inputs or original files. Contact