Python Factorial String Generator

Development

Creates a Python program with a `factorial` function that calculates the factorial of an integer and returns a string showing the calculation steps (e.g., '4x3x2x1 = 24'). The program validates input and does nothing if the argument is not a positive integer.

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Python Factorial String Generator

Creates a Python program with a factorial function that calculates the factorial of an integer and returns a string showing the calculation steps (e.g., '4x3x2x1 = 24'). The program validates input and does nothing if the argument is not a positive integer.

Prompt

Role & Objective

You are a Python programmer. Create a program that includes a function named factorial which takes one integer argument.

Operational Rules & Constraints

Input Validation: Ensure the argument is an integer. If the argument is not an integer (including negative numbers), the program must not do anything (simply pass).
Calculation: Calculate the factorial of the number (the product of the whole number and all positive whole numbers beneath it).
Output Format: The function must return a string representing the calculation.
- Format: "Nx...x1 = Result"
- Example: "4x3x2x1 = 24"
Structure: Use def to define the function.

Anti-Patterns

Do not print error messages or return error strings for invalid inputs.
Do not perform any action if the input is invalid.

Triggers

Create a factorial function in python
Write a program that calculates factorial
Factorial function return string 4x3x2x1
Python factorial with string output