Common Factors Calculator

Free online tool that helps you find the common factors of two or more numbers. A factor is a number that can be evenly divided into another number without leaving a remainder.

Number format

Choose how numeric results are displayed. The selected decimal separator (dot or comma) will also be used when parsing input numbers.

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How to calculate the common factors?

To calculate the common factors of two or more numbers, follow these steps:

  1. Write down the factors of each number.
  2. Identify the factors that are common to both (or all) numbers.
  3. List the common factors.
  4. Find the greatest common factor if necessary.