File:Sieve of Eratosthenes animation.gif

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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

Visual representation of Eratosthenes prime finding algorithm at work

Items portrayed in this file

depicts

sieve of Eratosthenes

prime number

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)wikimediacommons>WillNessReverted to version as of 14:52, 31 October 2011 - as per dicussion

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