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xkcd #2922: Pub Trivia (imgs.xkcd.com)

https://xkcd.com/2922

Alt text:

Bonus question: Where is London located? (a) The British Isles (b) Great Britain and Northern Ireland (c) The UK (d) Europe (or 'the EU') (e) Greater London

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[-] EmoDuck@sh.itjust.works 4 points 8 months ago

1 isn't considered a prime number so three can't ve constructed from just primes

[-] sudneo@lemm.ee 21 points 8 months ago
[-] EmoDuck@sh.itjust.works 25 points 8 months ago

Yes, but keep in mind:

I can't read

[-] caseyweederman@lemmy.ca 5 points 8 months ago
[-] sanguinepar@lemmy.world 3 points 8 months ago* (last edited 8 months ago)

4 then - if 1 isn't a prime, then 1+4 doesn't count.

EDIT - should have been 1+3, doh!

[-] KISSmyOSFeddit@lemmy.world 16 points 8 months ago
[-] sanguinepar@lemmy.world 5 points 8 months ago

Jesus, I forgot 2 was a prime, what a dolt.

[-] hstde@feddit.de 4 points 8 months ago
[-] sanguinepar@lemmy.world 2 points 8 months ago

Yeah, typo. But I was wrong anyway! :-)

[-] LemmynySnicket@lemmy.world 4 points 8 months ago

1+4=5 not 4 and 4 isn't prime either, so idk what you meant. 4 is the sum of two primes 2+2, which I thought was what you were asking at first.

[-] sanguinepar@lemmy.world 2 points 8 months ago

I screwed up twice here. Forgot 2 was a prime somehow.

1+4 was just a typo, meant 1+3.

[-] uriel238 8 points 8 months ago

I am disappointed in Lemmings' collective lack of Savvy regarding math trivia.

Next thing you'll be telling me you don't know how to prove there's an infinite number of prime twins.

this post was submitted on 21 Apr 2024
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