How to Calculate the Factorial of a Number in Python | Factorial Program in Python Explained

Want to learn how to calculate the factorial of a number in Python? In this tutorial, I'll show you step-by-step how to write a Python program to find the factorial of any number, including handling edge cases like 0!. 🔥 What You’ll Learn in This Video: ✅ What is Factorial? (n! explained) ✅ Writing a Python program for factorial using a loop ✅ Handling negative numbers and edge cases ✅ Optimizing your factorial code for better performance 📌 Example Input & Output: ✅ The factorial (n!) of a number n is the multiplication of all positive integers from 1 to n. ✅ By definition, 0! = 1. ✅ Factorial is not defined for negative numbers. factorial(5) # Output: 120 (5! = 5 × 4 × 3 × 2 × 1) factorial(7) # Output: 5040 (7! = 7 x 6 x 5 x 4 x 3 x 2 x 1) factorial(0) # Output: 1 (By definition, 0! = 1) 💡 Bonus Challenge: Try solving it using recursion as well! 🔹 More Python Tutorials: [Subscribe to My Channel: Automate with Rakesh] If you found this helpful, LIKE, SHARE, and SUBSCRIBE for more Python coding tutorials! 🚀 #Python #Factorial #PythonTutorial