this post was submitted on 04 Jun 2026
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Mildly Interesting

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This is for strictly mildly interesting material. If it's too interesting, it doesn't belong. If it's not interesting, it doesn't belong.

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My $1 bill has no repeating decimals in its serial number (sh.itjust.works)
submitted 1 month ago by Zonefive@sh.itjust.works to c/mildlyinteresting@lemmy.world
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[–] Ziglin@lemmy.world 6 points 1 month ago (2 children)

Base 16 would like a word.

[–] LodeMike@lemmy.today 5 points 1 month ago (3 children)

Credit card numbers are in base 10

[–] mangaskahn@lemmy.world 1 points 1 month ago (1 children)

What if they are generated in base 16, but numbers containing a-f are discarded. Did you think about that? Huh?

[–] LodeMike@lemmy.today 1 points 1 month ago

Yes. The check digit is calculated using base 10

[–] Ziglin@lemmy.world 1 points 1 month ago

Seems to be correct, I was thinking of a different card in my wallet.

Ahem I mean I fancypants McGee have the 16 element identity permutation for my card number!

[–] kkj@lemmy.dbzer0.com 1 points 1 month ago (2 children)

Everything is in base 10 (unless it's in unary).

[–] general_kitten@sopuli.xyz 1 points 1 month ago

not if i debase your currency >:3

[–] LodeMike@lemmy.today 1 points 1 month ago

Base ten then

[–] badlilbean@sh.itjust.works 5 points 1 month ago

Please tell me base 16 isn't trying to hex-a-decimal