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  Superpermutations - Numberphile - YouTube

  https://www.youtube.com/watch?v=wJGE4aEWc28

  The Great Courses Plus (free trial): http://ow.ly/C3FE30hIvhc This video features Dr James Grime. More links & stuff in full description below ??? More James...

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  78557 and Proth Primes - Numberphile - YouTube

  https://www.youtube.com/watch?v=fcVjitaM3LY

  James Grime is back and talking prime numbers. Check out Brilliant.org by using the link: https://brilliant.org/numberphile (20% off premium subscription) Mo...

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