From Numberphile.

Sophie Maclean demonstrates some fun properties of Euclid’s Algorithm.
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Sophie Playlist: https://www.youtube.com/playlist?list=PLt5AfwLFPxWJL8jqE19RlDCMJp7psCA6r

Sophie Maclean is based at Kings College, London: https://sophiethemathmo.wordpress.com

Ayliean playlist: https://www.youtube.com/playlist?list=PLt5AfwLFPxWIVNbbisfbcJKpb44__r2Rw

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