Prime Number Calculator
Check if a number is prime and find the next prime number.
Result
What is this Online Prime Number Calculator for?
The Prime Number Calculator determines if a given integer is a prime number (divisible only by 1 and itself). It also finds the nearest next prime number.
How does it work?
It uses trial division (optimized) to check for factors. If no factors other than 1 and the number itself are found, it is prime.