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4937775 - Numberphile

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Published on Dec 22, 2012

4937775 is a Smith Number - as are 27, 666 and infinite others!

Smith Numbers were first discovered in a phone book, explains Professor Ed Copeland from the University of Nottingham. Ed Tweets: https://twitter.com/ProfEdCopeland

Website: http://www.numberphile.com/
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Videos by Brady Haran

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