!
| Symbol | Format | Data |
|---|---|---|
| ! | Code Point |
U+0021 |
| TeX |
! |
|
| SVG |
The exclamation mark symbol is used in math to represent the factorial operator. Typically, the symbol is used in an expression like this:
In plain language, this means “take the factorial of the number five”.
The factorial operator calculates the product of all positive integers up to a given number, represented by an exclamation mark. It's used for counting and arranging items, calculating permutations and combinations, and appears in probability, statistics, and calculus.