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factorial of a number

Factorial of a number is equal to the product of the number and all the positive numbers below it.
Factorial of a number is denoted as n!.
for example Factorial of 7 is denoted as 7!.
7! = 7*6*5*4*3*2*1
7! = 5040

also 0! is 1 according to the convention of empty product.
To know more about factorials click here


C Program

C++ Program

Sample input and output to check the program






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