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Sieve_of_Eratosthenes_animation.gif (445 × 369 pixels, file size: 154 KB, MIME type: image/gif, looped, 159 frames, 37 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 (colouring in) all multiples of successive primes. It uses the common optimisation 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 needs only consider primes up to 7, because the square of the next prime 11 is 121, larger than any number here.
Source Own work, Original image at Image:Animation_Sieve_of_Eratosth.gif
Author SKopp at German Wikipedia

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Licensing

GNU head 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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Captions

اعداد اول

Items portrayed in this file

depicts

metre

conflict: Barbados
part of: Barbados
Reference
author name string: M

media type

image/gif

data size

157,448 byte

duration

36.8 second

height

369 pixel

width

445 pixel

checksum

8d6f004fe548807b5774a584caae2c7f2880a3e6

determination method or standard: SHA-1

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current16:30, 22 November 2011Thumbnail for version as of 16:30, 22 November 2011445 × 369 (154 KB)WillNessReverted to version as of 14:52, 31 October 2011 - as per dicussion
15:09, 5 November 2011Thumbnail for version as of 15:09, 5 November 2011445 × 369 (52 KB)TravürsaReverted to version as of 16:23, 22 February 2009. File:Sieve of Eratosthenes animation.gif has no discussion page. How can it possibly be "too different from that discussed"?
14:52, 31 October 2011Thumbnail for version as of 14:52, 31 October 2011445 × 369 (154 KB)JohnBlackburneReverted to version as of 14:19, 25 September 2007: restore FP version, as revision is too different from that discussed
16:23, 22 February 2009Thumbnail for version as of 16:23, 22 February 2009445 × 369 (52 KB)6Sixxoptimize
14:24, 22 February 2009Thumbnail for version as of 14:24, 22 February 2009445 × 369 (121 KB)6Sixxforgot a single frame
14:10, 22 February 2009Thumbnail for version as of 14:10, 22 February 2009445 × 369 (122 KB)6SixxRemoving frames overlapping inconsistency
14:19, 25 September 2007Thumbnail for version as of 14:19, 25 September 2007445 × 369 (154 KB)Brian0918== Summary == Animation that visualizes the "Sieve of Eratosthenes" algorithm. Original image at '''Image:Animation_Sieve_of_Eratosth.gif''' Original by SKopp (selfmade) == Licensing == {{GFDL}} category:Eratosthenes

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