Prime Number Calculator

Check for prime numbers and generate prime sequences instantly.

About Prime Number Calculator

The Prime Number Calculator is a mathematical utility that determines whether a given integer is a prime number. It can also identify factors for composite numbers and generate a list of all prime numbers up to a specified limit.

How to Use?

Check Prime

  • Enter a number in the input box.
  • Click "Check".
  • The tool will tell you if it's Prime or Composite.
  • If composite, it lists the factors (divisors).

Find Primes

  • Enter a maximum number limit (e.g., 100).
  • Click "Find Primes".
  • See all prime numbers found within that range.

Features

  • Instant Verification: Quickly checks primality.
  • Factorization: Shows why a number is not prime by listing its divisors.
  • Sieve Generator: efficiently finds multiple primes.

FAQ

What is a prime number?

A prime number is a whole number greater than 1 whose only divisors are 1 and itself (e.g., 2, 3, 5, 7, 11).