Interactive Math Tool

Number Theory Toolkit

Explore prime factorization, GCD & LCM, divisibility rules, the Sieve of Eratosthenes, modular arithmetic, and number properties -- all with step-by-step explanations and visualizations.

🌳 Prime Factorization

Enter a positive integer (up to 10,000,000)

🔗 GCD & LCM Calculator

Number A

Number B

Number C (optional)

✅ Divisibility Tests

Enter a number

🔍 Sieve of Eratosthenes

Range (up to 500)

Speed: Medium

🔄 Modular Arithmetic

Operation

n (modulus)

📊 Number Properties

Enter a number

🔝

Number Theory Toolkit

Euclidean Algorithm

Prime Factorization Method