±Free
Prime factorization
Factor a positive integer up to one trillion using bounded trial division.
Enter an integer from 2 through one trillion. The tool divides out each prime factor, counts its exponent and returns both structured factors and an expression such as 2^3 × 3^2 × 5.
How to use
- Enter your text, values, or image.
- Adjust the options and run the tool.
- Copy or download your result.
Worked example
Example input
Integer n: 360
Example result
{
"factors": [
{
"prime": 2,
"power": 3
},
{
"prime": 3,
"power": 2
},
{
"prime": 5,
"power": 1
}
],
"expression": "2^3 × 3^2 × 5"
}Limitations and details
Inputs are limited to 2–10¹²; trial division is unsuitable for factoring cryptographic-size integers.
Inputs and options
- Integer n
- Number · Minimum: 2 · Maximum: 1000000000000
Frequently asked questions
Is this tool free and private?
Yes. All 300 tools are free in this phase. Processing happens in your browser; your input and files are not sent to our servers.