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PrimeNumbersSmall.png (320 × 240 pixels, file size: 13 KB, MIME type: image/png)

Description
English: Every pixel here represents a number in the range 1 to 76,800.

If the pixel is black, the number it represents is prime. If the pixel is white, that number is not prime.

So for example, the white pixel in the upper-left represents "1", which not prime. The next two black pixels to the right in the same row represent "2" and "3", which are prime.

For any pixel, the number it represents is given by

number = column + (row-1)*320

where column runs from 1 to 320, and row from 1 to 240.

See the list of the 100,008 primes
Date 9 March 2007 (original upload date)
Source Transferred from en.wikipedia to Commons by Daniele Pugliesi.
Author The original uploader was JabberWok at English Wikipedia.

Licensing

This work is ineligible for copyright and therefore in the public domain because it consists entirely of information that is common property and contains no original authorship.

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The original description page was here. All following user names refer to en.wikipedia.
  • 2007-03-09 05:28 JabberWok 320×240× (13504 bytes) Every pixel here represents a number in the range 1 to 76,800. If the pixel is black, the number it represents is prime. If the pixel is white, that number is not prime. So for example, the white pixel in the upper-left represents "1" which is not usua

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current15:35, 5 January 2009Thumbnail for version as of 15:35, 5 January 2009320 × 240 (13 KB)Ensahequ{{Information |Description={{en|Every pixel here represents a number in the range 1 to 76,800. If the pixel is black, the number it represents is prime. If the pixel is white, that number is not prime. So for example, the white pixel in the upper-left

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