GCD

Returns the greatest common divisor of two or more integers. The greatest common divisor is the largest integer that divides both number1 and number2 without a remainder.

Syntax

GCD(number1,number2, ...)

Number1, number2, ... are 1 to 255 values. If any value is not an integer, it is truncated.

Remarks

• If any argument is nonnumeric, GCD returns the #VALUE! error value.
• If any argument is less than zero, GCD returns the #NUM! error value.
• One divides any value evenly.
• A prime number has only itself and one as even divisors.

Example

The example may be easier to understand if you copy it to a blank worksheet.

How to copy an example

1. Create a blank workbook or worksheet.
2. Select the example in the Help topic.

   Note Do not select the row or column headers.

   Selecting an example from Help

3. Press CTRL+C.
4. In the worksheet, select cell A1, and press CTRL+V.
5. To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Formulas tab, in the Formula Auditing group, click the Show Formulas button.

See also:

• LCM
• Math and trigonometry functions