File:Znam-2-3-11-23-31.svg

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Summary

Description Graphical demonstration that 1 = 1/2 + 1/3 + 1/11 + 1/23 + 1/31 + 1/(2×3×11×23×31). Each row of squares has k squares of side length 1/k, for some k in the set {2,3,11,23,31,47058}; for instance the first row has two squares of side length 1/2. Thus, each row of squares has area 1/k, and all six rows together exactly cover a unit square. The bottom row, with 47058 squares of side length 1/47058, would be too small to see in the figure, and is not shown. Sets of integers such that , such as the set {2,3,11,23,31} used to construct this figure, correspond to solutions of Znám's problem. As all numbers in the set {2,3,11,23,31} are prime, their product 47058 is a primary pseudoperfect number.
Date 5 December 2006 (original upload date)
Source Transferred from en.wikipedia to Commons.
Author David Eppstein at English Wikipedia
Other versions File:Sylvester-square.svg

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Public domain This work has been released into the public domain by its author, David Eppstein at English Wikipedia. This applies worldwide.
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  • 2006-12-05 01:51 David Eppstein 256×256×0 (5661 bytes) Graphical demonstration that 1 = 1/2 + 1/3 + 1/11 + 1/23 + 1/31 + 1/(2×3×11×23×31). Each row of squares has k squares of side length 1/k, for some k in the set {2,3,11,23,31,47058}; for instance the first row has two squares of sid

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5 December 2006

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current02:27, 25 August 2007Thumbnail for version as of 02:27, 25 August 2007396 × 396 (7 KB)David Eppstein{{Information |Description=Graphical demonstration that 1 = 1/2 + 1/3 + 1/11 + 1/23 + 1/31 + 1/(2×3×11×23×31). Each row of squares has k squares of side length 1/k, for some k in the set {2,3,11,23,31,47058}; for instance the first row has two squares

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