what is the use of factorial. I mean! this one answer plzzz urgent. soon guys
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Factorials helps in finding the sum of the before or after numbers.
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The factorial operation is encountered in many areas of mathematics, notably in combinatorics, algebra, andmathematical analysis. Its most basic occurrence is the fact that there are n! ways to arrange n distinct objects into a sequence (i.e., permutations of the set of objects).
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