Factorial in Python

Description

Python program to find factorial of n
Input
5
Output
120

Solution

n=int(input("Enter n value:"))
fact=1
for i in range(1,n+1):
   fact*=i
print(fact)
    

Explanation

For Statement is used to execute the sequence of intruction repeatedly.
Range() method gives list of elements, here range() method gives list which has 1,2,3... to n.
for statement executes the instructions iteratively and for takes the elements one by one as value of i in sequential manner.
so it multiplies with fact in every iteration, finally produces product of n natural numbers.