AVirtualSpaceTimeTravelMachine : The Eratosthene sieve displaying the integer numbers from 1 to 128 (Le crible d'Eratosthene montrant les nombres entiers de 1 a 128)

The Eratosthene sieve displaying the integer numbers from 1 to 128 [Le crible d'Eratosthène montrant les nombres entiers de 1 à 128].

The horizontal and the vertical axes display respectively the integer numbers X and their possible divisors Y. If Y divides exactly X, a green square with coordinates {X,Y} is marked and else a red square is used. At last, a white segment (obviously both ends are green since 1 and X divide X whatever X) with abscissa X > 2 means that X is a prime number (2 is the first prime number -the only one that is even- but it is not displayed here by means of a white segment).

(CMAP28 WWW site: this page was created on 04/02/2015 and last updated on 03/03/2016 07:43:31 -CET-)

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