4.11. Calculating the Factorial of a Number - Python
Starting out with Python, Third Edition, Tony Gaddis
Chapter 4
Programming Challenges
- Calculating the Factorial of a Number
In mathematics, the notation n! represents the factorial of the nonnegative integer n . The factorial of n is the product of all the nonnegative integers from 1 to n. For example,
7! = 1 x 2 x 3 x 4 x 5 x 6 x 7 = 5,040
and
4! = 1 x 2 x 3 x 4 = 24
Write a program that lets the user enter a nonnegative integer and then uses a loop to calculate the factorial of that number. Display the factorial.
Starting out with Python, Third Edition, Tony Gaddis.
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