Here you will get Python program to find factorial of number using for and while loop. The Factorial of a number is calculated by multiplying it with all the numbers below it starting from 1. For example, the factorial of 4 is 24 (1 x 2 x 3 x 4).

Oct 15, 2020 · for i in range (1, n+1): result *= i. return result. Explanation: The factorial of a number is simply to multiply all whole numbers starting with n down to 1. If you were to run: print(i) You would see (if n is 5): Since the factorial of 5 is 5*4*3*2*1, we can take this logic and apply it to our code. Remember the values of i, printed out above.

If the number is positive, we use for loop and range () function to calculate the factorial. to find the factorial of an integer""" if x == 1 or x == 0: return 1 else: # recursive call to the function return (x * factorial(x-1)) # change the value for a different result . print("The factorial of", num, "is", result)

Apr 8, 2025 · The factorial of a number is the product of all positive integers less than or equal to that number. For example, the factorial of 5 (denoted as 5!) is 5 × 4 × 3 × 2 × 1 = 120. In Python, we can calculate the factorial of a number using various methods, such as loops, recursion, built-in functions, and other approaches.

This Python program finds the factorial of a number using a loop. Definition of the Factorial Function? The factorial function is a mathematics formula represented by the exclamation mark "!".

Mar 31, 2025 · Using a Loop (Iterative Method) The for loop is an easy method to find the factorial of a number in Python. It involves multiplying numbers from 1 to the given number using a for loop. print("Factorial not defined for negative numbers") factorial *= i # Multiply factorial by loop counter . Output:

In this tutorial, we covered different methods to calculate the factorial of a number: Using a for loop; Using recursion; Using a while loop; Using Python's built-in math library; Handling large numbers efficiently; Each method has its use case depending on the problem requirements.

Oct 12, 2022 · In this Python exercise, we are going to learn how to calculate the factorial of a number in Python using for loop. The factorial of a number is the item of all positive integrability up to and including that number. For Example, the factorial of 5 is 5 x 4 x 3 x 2 x 1 = 120.

Using this given value, this program finds the Factorial of a number using For Loop. The for loop will start from 1 and multiply the current value by the next integer until it reaches the user given number.

Jul 23, 2022 · Quick Algo for factorial Program in Python using for loop: Input an integer number from the user. Initialize fact=1. Use for loop to multiply "fact" with all the numbers less than and equal to the number given by the user. Now, print the factorial of that number. If you need the source code of any other program, write it in the comment section.