Write A Python Program To Calculate Factorial Of Given Number Using Function

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Title :

Python Problem : Write A Python Program To Calculate Factorial Of Given Number Using Function


Description :

Lets define a function and take a temp variable initialize it to 1. Then using for loop traverse from 2 to n and find the factorial of a number by multiplying the temp with index. Return the temp as factorial, nan


Code : 

def fact(n):
    temp = 1
    for index in range(2, n + 1):
        temp = temp * index
    return temp


x = int(input("Enter a number : "))
if x >= 0:
    print("Factorial of number is %d" % fact(x))
else:
    print("Factorial of number is not possible !")


Conclusion :

Once you are done with reading the above code, open your python editor, try to write the program by yourself. This will improve your coding skills, try changing variable names, change operators and execute it.

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