They don't have anything to do with real vampires, but they're still pretty cool.
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Key Facts In This Video
See why 1,260 is a vampire number: 00:37
117,067 is a prime vampire number with prime fangs. 02:40
In traditional folklore, vampires often suffered from arithmomania, or the compulsion to count. 03:47
Why Vampires Can't Exist
Plus nine other interesting facts.