Check if number is prime
Check if a number is prime (only divisible by 1 and itself).
Tests divisibility up to √n for efficiency
Yes, our Prime Number Checker is completely free to use. No registration, payment, or subscription required.
Our calculator uses precise mathematical formulas and algorithms to ensure accurate results for all your math calculations. The formula used is: Tests divisibility up to √n for efficiency
This calculator is perfect for: Number theory, Cryptography, Mathematical research, Programming, Security algorithms. It's designed for both personal and professional use.
Yes, our Prime Number Checker is fully responsive and works perfectly on smartphones, tablets, and desktop computers. The interface adapts to your screen size for optimal usability.
No, we don't store any of your input data or calculation results. All calculations are performed locally in your browser for complete privacy and security.