Prime Number Calculator and Checker

A Prime Number is a natural number that has exactly two distinct natural number divisors: 1 and itself.
To check if a natural number is prime, input the number and click the "Check the Number" button.
To calculate the next prime number of a natural number, input the number and click the "Next Prime" button.
If a number is not prime you can get it's divisors with one click on the "Get Divisors" button or calculate the next prime number.