Function to find factorial of a number Dry Run in PYTHON

Function to find factorial of a number is an interactive PYTHON dry run visualizer from the Functions programs section. Study the source code, then use the execution controls to follow each step, variable update, highlighted line, and console output.

This page provides a browser-based dry run with source-code highlighting, auto-scroll, voice narration controls, and execution output for learning the program step by step.

Function to find factorial of a number Program Code

def factorial(n):
    """Calculate factorial using iterative approach"""
    fact = 1
    for i in range(1, n + 1):
        fact *= i
    return fact

# Test
num = 6
print(f"{num}! = {factorial(num)}")

View the complete Functions programs page.