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What is a factorial and what is it used for​

Answer»

Answer:

Factorial is the OPERATION of multiplying any natural number with all the natural numbers that are smaller than it, giving us the mathematical DEFINITION n! = n * (n - 1) * (n - 2) * (n - 3) .... LASTLY, factorial is USED for questions that ask you to find how many ways you can arrange or order a set number of things.

Step-by-step explanation:

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