The Excel GCD function is used to find the greatest common divisor (GCD) of a set of numbers. In simpler terms, it helps you find the largest number that can evenly divide a group of numbers.

## Syntax

**GCD(number1, [number2], …)**

## Arguments

Here’s how the arguments work:

number1 | The first number for which you want to find the GCD. |

number2 | (Optional) Additional numbers for which you want to find the GCD. You can include up to 255 numbers. |

## How to Use

1. To use the GCD function, enter it in a cell where you want to calculate the GCD of a set of numbers. For example:

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=GCD(A1, B1, C1) |

2. Replace “A1,” “B1,” and “C1” with the cell references or numbers you want to find the GCD for.

3. Press Enter, and Excel will calculate and display the GCD of the provided numbers.

## Examples

Let’s see some practical examples:

**Example 1:** Finding the GCD of 18 and 24

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=GCD(18, 24) |

The result will be 6, as 6 is the largest number that can evenly divide both 18 and 24.

**Example 2:** Finding the GCD of multiple numbers

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=GCD(36, 48, 60) |

In this case, the GCD is 12, which is the largest number that can evenly divide all three numbers.

**Example 3:** Using cell references

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=GCD(A1, B1, C1, D1) |

If you have your numbers in cells A1, B1, C1, and D1, this formula will calculate the GCD for those cells.

## Additional Information

The GCD function is useful in various applications, such as simplifying fractions and solving mathematical problems where you need to find common divisors. It can be particularly handy in engineering, finance, and other fields where mathematical calculations are required.