Python program to print factorial of a given number

What are factorials?

Factorial of an integer is product of that integer and all positive integers below it such that 4 factorial is equal to 4x3x2x1 = 24. Factorial is represented by "!" i.e. 4! means 4 factorial which is equal to 24.

Algorithm :-

Step 1- Start

Step 2- Input a number

Step 3- Declare variable fact and i

Step 4- Initialize value

             fact←1

             i←2

Step 5- if i<=number

                 fact=fact*i

                 i=i+1

                 repeat Step 5

             else

                 go to Step 6

Step 6- Display fact

Step 7- Stop

Flowchart :-

Code :-

number=int(input("Enter a number:"))
fact=1
i=2
while i<=number:
    fact=fact*i
    i=i+1
print(fact)