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: `10909` is 1 more than `10908` (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 `10909` is `119006281`. Subtracting 1, we get `119006280`. Note that `119006280 ÷ 24 = 4958595`.

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: `10909 = 5455^2 - 5454^2 = 29757025 - 29746116`

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: `10909 = 53^2 + 90^2 = 2809 + 8100`, where `10909 = 4 × 2727 + 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: `10909` is of the form `4n+1`, where `n = 2727`.