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.
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: `1399` is 1 more than `1398` (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 `1399` is `1957201`. Subtracting 1, we get `1957200`. Note that `1957200 ÷ 24 = 81550`.
3) Difference of squares: Every prime number greater than 2 can be expressed as the difference of the squares of two positive integers.
Example: `1399 = 700^2 - 699^2 = 490000 - 488601`
4) 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: `1399` is of the form `4n-1`, where `n = 350`.
PORTUGUESE
ENGLISH
SPANISH
FRENCH
GERMAN
CHINESE