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John Conway proves that 91 is the smallest number which looks prime but isn't (www.youtube.com)
submitted 1 month ago by threelonmusketeers@sh.itjust.works to c/mathmemes
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[-] smeg@feddit.uk 4 points 1 month ago

Surely it's 1? Looks prime, and some people will even argue that it is!

[-] mvirts@lemmy.world 5 points 1 month ago

Its only factors are 1 and itself after all

this post was submitted on 22 Sep 2024
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