# Common Factor Calculator

> Find all common factors of multiple numbers.

Page: https://askcalculators.com/calculator/common-factor-calculator/
Definition: https://askcalculators.com/calculator/common-factor-calculator/definition.json
JSON Schema: https://askcalculators.com/calculator/common-factor-calculator/schema.json
Version: 7.0.0
Maintained by: AskCalculators (software project; not a credentialed reviewer)
Qualified review: pending. Automated checks do not establish professional approval.
Page status: Live
Review status: Pending

## Use
Open the calculator page and enter values. Query-string parameters can restore and bookmark a calculation.
Example: https://askcalculators.com/calculator/common-factor-calculator/?numbers=12%2C+18%2C+24

## Inputs
- numbers: Enter numbers (comma separated); type=text; optional; default=12, 18, 24

## Outputs
- result: Result; format=text; primary

## Formula
Common factors are the intersection of the positive-divisor sets of all entered integers.

## Rules
- Empty optional inputs are undefined, not zero.
- Hidden conditional inputs are ignored.
- Do not invent missing required inputs.