# File:New Animation Sieve of Eratosthenes.gif

https://en.wikipedia.org/wiki/File:New_Animation_Sieve_of_Eratosthenes.gif

New_Animation_Sieve_of_Eratosthenes.gif(554 × 445 pixels, file size: 43 KB, MIME type: image/gif, looped, 159 frames, 36 s)

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## Summary

 Description English: Animation that visualizes the "Sieve of Eratosthenes" algorithm.The Sieve of Eratosthenes is an method for efficiently finding all prime numbers up to a number, 120 in this case, by eliminating all multiples of successive primes. It uses the common optimization of starting at p2 for each prime p, as all non-primes (composites) up to p2 were found in previous passes. Because of this it only needs to consider primes up to 7, because the square of the next prime 11 is 121, larger than any number here. Date 27 December 2007 Source Own work. Inspired on a similar picture by SKopp. Author M.qrius

## Licensing

I, the copyright holder of this work, hereby publish it under the following licenses:
 Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.

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## File history

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Date/TimeThumbnailDimensionsUserComment
current 20:17, 14 February 2012 554 × 445 (43 KB)Waldyriousrevert my change. there was actually a logic behind the missing values, see File talk:Sieve of Eratosthenes animation.gif
18:53, 30 April 2011 554 × 445 (44 KB)WaldyriousFix for consistency: all multiples now overlap the previous ones (previously, most of them did, but some didn't)
22:12, 27 December 2007 554 × 445 (43 KB)Mqrius{{Information |Description=Animation that visualizes the "Sieve of Eratosthenes" algorithm by M.qrius (selfmade). Inspired by similar picture from Skopp. |Source=self-made |Date=2007-12-27 |Author= M.qrius |Permission=- |other_versions=-
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