$$$1!$$$
The calculator will find the factorial of the number $$$1$$$, with steps shown.
Your Input
Find $$$1!$$$
Solution
The factorial of a positive integer $$$n$$$ is the product of all positive integers less than or equal to $$$n$$$: $$$n! = 1 \cdot 2 \cdot \ldots \cdot (n-1) \cdot n$$$.
Thus, $$$1! = 1 = 1$$$.
Answer
$$$1! = 1$$$A