Prime Number Checker

Check if a number is prime, find prime factors, and generate primes in a range using the Sieve of Eratosthenes

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Check if a number is prime, find prime factors, and generate primes in a range using the Sieve of Eratosthenes

🔒All processing happens in your browser. No data is uploaded.

Prime Check

Enter a number

This number is prime

Previous prime:89

Next prime:101

Prime Factorization

Enter a number

360 =2 × 2 × 2 × 3 × 3 × 5

Primes in Range

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