Professor Cardy

Prime Number Calculator

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Enter an integer (max. 1,000,000)


6053 is a prime number.

About the Calculator

This calculator performs the decomposition of a number into its prime factors and lists all its natural divisors. Enter an integer between 1 and 1,000,000.

Curiosities

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: `6053` is 1 less than `6054` (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 `6053` is `36638809`. Subtracting 1, we get `36638808`. Note that `36638808 ÷ 24 = 1526617`.

3) Difference of squares: Every prime number greater than 2 can be expressed as the difference of the squares of two positive integers.
Example: `6053 = 3027^2 - 3026^2 = 9162729 - 9156676`

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: `6053 = 47^2 + 62^2 = 2209 + 3844`, where `6053 = 4 × 1513 + 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: `6053` is of the form `4n+1`, where `n = 1513`.

The First 1000 Prime Numbers