Python Prime Number Checker

Description

The Python Prime Number Checker is a simple command-line application that allows users to check if a given integer between 1 and 5000 is a prime number. If the number is not prime, the program will also display its factors.

Features

• Prime Number Check: Determines if the entered number is a prime number.
• Factor Display: If the number is not prime, displays all its factors.
• Retry Option: Allows the user to check multiple numbers in a single session.

Usage

1. Clone the Repository: Clone the repository to your local machine.

   git clone https://github.com/manjindersa/Python-Prime-Num-Checker.git

2. Navigate to the Directory: Change to the directory containing the PrimeNumChecker.py file.

   cd Python-Prime-Num-Checker

3. Run the Program: Execute the Python script.

   python PrimeNumChecker.py

4. Enter a Number: Follow the prompt to enter an integer between 1 and 5000.
5. Check Result: The program will indicate whether the number is prime and, if not, display its factors.
6. Try Again: The program will prompt if you want to check another number. Enter 'y' to continue or 'n' to exit.

Example

Prime Number Checker

Please enter an integer between 1 and 5000: 29
29 is a prime number.

Try again? (y/n): y

Please enter an integer between 1 and 5000: 30
30 is NOT a prime number.
It has 8 factors: 1 2 3 5 6 10 15 30

Try again? (y/n): n
Bye!

Code Structure

Main Program

• Input Validation: Ensures the entered number is an integer between 1 and 5000.
• Prime Check: Determines if the entered number is a prime number.
• Factor Calculation: If the number is not prime, calculates and displays its factors.
• Retry Option: Allows the user to try again or exit the program.

Functions

• Prime Check: Uses a simple algorithm to determine if a number is prime by checking divisibility up to the square root of the number.
• Factor Calculation: Iterates through all integers from 1 to the number itself to find and display all factors.

Author

• Manjinder Singh

License

This project is licensed under the MIT License - see the LICENSE file for details.

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Feel free to contribute, report issues, or suggest features by opening a pull request or issue on the GitHub repository.