Find factorial using reduce Dry Run in PYTHON

Find factorial using reduce is an interactive PYTHON dry run visualizer from the Special 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.

Find factorial using reduce Program Code

from functools import reduce
factorial = lambda n: reduce(lambda a, b: a * b, range(1, n+1), 1)
print(factorial(5))  # 120
print(factorial(6))  # 720

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