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-)

[See all related pictures (including this one) [Voir toutes les images associées (incluant celle-ci)]]

[Please visit the related NumberTheory picture gallery [Visitez la galerie d'images NumberTheory associée]]
[Go back to AVirtualMachineForExploringSpaceTimeAndBeyond [Retour à AVirtualMachineForExploringSpaceTimeAndBeyond]]
[The Y2K bug [Le bug de l'an 2000]]

[Site Map, Help and Search [Plan du Site, Aide et Recherche]]
[Mail [Courrier]]
[About Pictures and Animations [A Propos des Images et des Animations]]

Copyright (c) Jean-François Colonna, 2015-2016.
Copyright (c) CMAP (Centre de Mathématiques APpliquées) UMR CNRS 7641 / Ecole Polytechnique, 2015-2016.