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Prime Calculator

Calculate prime numbers up to any limit and check if specific numbers are prime

Generate Prime Numbers

Enter a number and click "Generate Primes" to see all prime numbers up to that limit.

Check if Number is Prime

Enter a number and click "Check Prime" to determine if it's a prime number.

About Prime Numbers

What are Prime Numbers?

Prime numbers are natural numbers greater than 1 that have no positive divisors other than 1 and themselves. The first few prime numbers are: 2, 3, 5, 7, 11, 13, 17, 19, 23...

Features:

  • Generate all primes
  • Check if any number is prime (up to JavaScript's max safe integer)
  • Performance statistics and timing
  • Uses the Sieve of Eratosthenes algorithm for efficiency

How to Use:

  • Generate Primes: Enter a number and find all primes up to that limit
  • Check Prime: Enter a specific number to see if it's prime
  • View Results: See the list of primes and performance statistics
  • Clear: Reset the results and start over

Note: Large numbers may take a moment to process. The app uses efficient algorithms to provide fast results.