This post will guide you how to use** Excel ****FACT function** with syntax and examples in Microsoft excel.

### Description

The Excel FACT function returns the factorial of a given number. The factorial of a given number is equal to 1*2*3…* number.

The FACT function is a build-in function in Microsoft Excel and it is categorized as a Math and Trigonometry Function.

The FACT function is available in Excel 2016, Excel 2013, Excel 2010, Excel 2007, Excel 2003, Excel XP, Excel 2000, Excel 2011 for Mac.

### Syntax

The syntax of the FACT function is as below:

**=**** FACT** **(****number)**

Where the FACT function arguments is:

**number **– This is a required argument. A numeric value that you want to calculate the factorial. And the number need to be a positive integer. If the number is not an integer and it will be truncated.

** Note:**

- If the number argument is negative, the FACT function will return #NUM! Error.
- If the number argument is non-numeric, the FACT function will return #VALUE! Error.

### Excel FACT Function Examples

The below examples will show you how to use Excel FACT Function to calculate the natural logarithm of a given number.

**1#** to get the factorial of number 14, enter the following formula in Cell B1.

**=**** FACT(14)**

**2#** to get the factorial of the integer of 2.8, enter the following formula in Cell B2.

**=**** FACT(2.8)**

** **

**3#** to get the factorial of 0, enter the following formula in Cell B3.

**=**** FACT (0)**

**4# **to get the factorial of a negative number, and returns a #NUM! Error, enter the following formula in Cell B4

**=FACT(-2)**

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