6174 - Numberphile

2011-12-05

[public] 7.28M views, 69.8K likes, 3.63K dislikes audio only

6174 is also known as Kaprekar's Constant.

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This video features University of Nottingham physics professor Roger Bowley, who is also featured on our Sixty Symbols channel at http://www.youtube.com/sixtysymbols

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