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: `77279` is 1 less than `77280` (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 `77279` is `5972043841`. Subtracting 1, we get `5972043840`. Note that `5972043840 ÷ 24 = 248835160`.
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: `77279 = 38640^2 - 38639^2 = 1493049600 - 1492972321`
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: `77279` is of the form `4n-1`, where `n = 19320`.
PORTUGUESE
ENGLISH
SPANISH
FRENCH
GERMAN
CHINESE