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FACT
Returns the factorial of a number. The factorial of a number is equal to 1*2*3*...* number.
Syntax
FACT(number)
Number is the nonnegative number you want the factorial of. If number is not an integer, it is truncated.
Example
The example may be easier to understand if you copy it to a blank spreadsheet.
How?
- Create a blank spreadsheet.
- Select the example in the Help topic.
Selecting an example from Help
- Press CTRL+C.
- In the spreadsheet, select cell A1, and press CTRL+V.
- To switch between viewing the formula that returns the result and the result in the cell, select the cell and press F2 and then ENTER, or click Commands and Options on the spreadsheet toolbar, click the Formula tab, and look in the Formula in active cell (active cell) box.
| Formula | Description (Result) |
|---|---|
| =FACT(5) | Factorial of 5, or 1*2*3*4*5 (120) |
| =FACT(1.9) | Factorial of the integer of 1.9 (1) |
| =FACT(0) | Factorial of 0 (1) |
| =FACT(-1) | Negative numbers cause an error value (#NUM!) |
| =FACT(1) | Factorial of 1 (1) |