Why 1 is Not a Prime

You may have been taught that the number 1 is a prime number, but Dr. James Grime and Brady Haran from Numberphile are here to show you why this isn’t the case. For more great videos like this, be sure to subscribe to Numberphile here.

Also, don’t forget to check out TodayIFoundOut’s YouTube channel here, which very soon will start being updated weekly as our video person switches to doing this full time instead of almost never-time. ;-)

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