Question

what is Factorial in maths define

Answer 1

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⏺️ Factorial, in mathematics, the product of all positive integers less than or equal to a given positive integer and denoted by that integer and an exclamation point. Thus, factorial seven is written 7!, meaning 1 × 2 × 3 × 4 × 5 × 6 × 7. Factorial zero is defined as equal to 1.


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Answer 2

factorial is a product of reverse digit from n to 1
Ex:-n no. is 5
so factorial of 5 is
= 5×4×3×2×1
=120

I hope it will help u