Prime factorization calculator
Break a whole number into its prime factors.
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Only whole numbers in the stated range are supported. Zero, one and negative values do not have a prime factorization in this tool. Computation happens locally in your browser. Change the input or settings to update your result. Results update as you type. Up to 1,000,000 characters.
Your result
How to use Prime factorization calculator
- Enter the values you want to calculate and choose the relevant units or settings.
- The result updates as you type. Adjust the available settings if needed.
- Review the result, then use Copy result or a download link when available.
Useful next steps
How to use it
Enter an integer from 2 to 1 trillion. Repeated prime factors are shown individually so you can multiply them back together.
A worked example
360 becomes 2 × 2 × 2 × 3 × 3 × 5. A prime such as 97 has just one prime factor: itself.
What to know
Only whole numbers in the stated range are supported. Zero, one and negative values do not have a prime factorization in this tool. Computation happens locally in your browser.