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$$$1!$$$

The calculator will find the factorial of the number $$$1$$$, with steps shown.

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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