Prime Number Calculator

1) Relation to multiples of 6: Every prime number greater than 3 is always one less or one more than a multiple of 6.
Example: `26437` is 1 more than `26436` (multiple of 6).

2) Square minus 1 divisible by 24: For every prime number greater than 3, if 1 is subtracted from its square, the result is always divisible by 24.
Example: The square of `26437` is `698914969`. Subtracting 1, we get `698914968`. Note that `698914968 ÷ 24 = 29121457`.

3) Difference of squares: Every prime number greater than 2 can be expressed as the difference of the squares of two consecutive natural numbers.
Example: `26437 = 13219^2 - 13218^2 = 174741961 - 174715524`

4) Sum of two squares: Every prime number of the form `4n+1` (where n is a positive natural number) can be expressed as the sum of two squares.
Example: `26437 = 34^2 + 159^2 = 1156 + 25281`, where `26437 = 4 × 6609 + 1`.

5) Form `4n+1` or `4n-1`: Except for the number 2, all prime numbers follow the pattern `4n+1` or `4n-1`, where `n` is a natural number.
Example: `26437` is of the form `4n+1`, where `n = 6609`.