A React Native mobile application that demonstrates Kaprekar’s Constant for 2-digit, 3-digit, and 4-digit numbers.
The app allows users to input a number, apply Kaprekar’s routine step by step, and observe how it converges to the Kaprekar constant.

• Supports 2-digit, 3-digit, and 4-digit numbers
• Step-by-step visualization of Kaprekar’s process
• Input validation (no invalid or identical-digit numbers)
• Clean and simple UI
• Works on Android and iOS

• 2-digit numbers: 9
• 3-digit numbers: 495
• 4-digit numbers: 6174

The app repeatedly:

1. Rearranges digits in ascending and descending order
2. Subtracts the smaller number from the larger
3. Repeats until the Kaprekar constant is reached

• Node.js (>= 16 recommended)
• npm or yarn
• React Native CLI or Expo (depending on your setup)
• Android Studio / Xcode (for emulator or device testing)

1. Clone the repository:

   git clone https://github.com/manavjain01/kaprekar-constant.git