Week 2 Day 3 – Number Analyzer

Project Overview

This project is a JavaScript-based web application that analyzes numbers using loops. It identifies whether numbers are **even, odd, and prime**, and provides a summary count.

Features

* Takes user input
* Generates numbers from 1 to input
* Identifies:

  * Even numbers
  * Odd numbers
  * Prime numbers
* Displays total counts
* Dynamic UI update

Tech Stack

* HTML5
* CSS3
* JavaScript (Vanilla JS)

How It Works

1. User enters a number
2. Loop runs from 1 to input
3. For each number:

   * Even → i % 2 === 0
   * Odd → else
   * Prime → checked using divisor loop
4. Counters track totals
5. Output displayed dynamically

Key Concepts Used

* for loops
* Nested loops
* Conditional statements
* Prime number logic
* Counters (frequency counting)
* DOM manipulation

Output Example

Input: 5

1 - Odd
2 - Even | Prime
3 - Odd | Prime
4 - Even
5 - Odd | Prime

Total Even Numbers: 2
Total Odd Numbers: 3
Total Prime Numbers: 3

Future Improvements

* Optimize prime check (√n method)
* Add input validation
* Add reset button
* Highlight primes with color

Learning Outcome

* Understanding of loops and nested loops
* Implementation of mathematical logic
* Real-world problem solving using JavaScript
* Efficient use of counters and conditions