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A Square Triangle

https://commons.wikimedia.org/wiki/File:3-Pascal.png
Image: Wikimedia Commons

The product of the six numbers surrounding any interior number in Pascal’s triangle is a perfect square.

July 14, 2016 | Science & Math

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Futility Closet is a collection of entertaining curiosities in history, literature, language, art, philosophy, and mathematics, designed to help you waste time as enjoyably as possible.

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