The number $n$ factorial is the product of the first $n$ positive integers. This number is denoted $n!$. For example,\[5! = 1 \cdot 2 \cdot 3 \cdot 4 \cdot 5 = 120.\] Write a Python program to compute $n!$, where the user enters any positive integer $n.$ Use your program to compute $16!$, and enter the value of $16!$ that it gives you in the box below.

From the program,

16! = 20922789888000

The python program is as follows:

n = int(input("Number: "))

if n < 0:

     print("Positive integers only")

else:

     result = 1

     for i in range(1,n+1):

           result = result * i

     print(n,"! = ",result)

Step-by-step explanation:

This line prompts user for input

n = int(input("Number: "))

This line checks if n is negative

if n < 0:

If yes, the following print statement is executed

     print("Positive integers only")

If otherwise, the factorial of the input number is calculated

else:

This line initial the result to 1

     result = 1

This line iterates from 1 to user input

     for i in range(1,n+1):

This line multiply the value of each iteration to get the factorial of the input number

           result = result * i

This line prints the factorial of the input number

     print(n,"! = ",result)

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step-by-step explanation:

hope this .

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