Prime Number Calculator
Free online Prime Number Calculator. Check if a number is prime, find its factors, and generate lists of prime numbers.
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?
- 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).
- 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).