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My $1 bill has no repeating decimals in its serial number
(sh.itjust.works)
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this post was submitted on 04 Jun 2026
190 points (100.0% liked)
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.
This is obviously an objective criteria, so the mods are always right. Or maybe mildly right? Ahh.. what do we know?
Just post some stuff and don't spam.
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Now do your credit card.
It's not possible because that's 16 digits.
Base 16 would like a word.
Credit card numbers are in base 10
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!
What if they are generated in base 16, but numbers containing a-f are discarded. Did you think about that? Huh?
Yes. The check digit is calculated using base 10
Everything is in base 10 (unless it's in unary).
not if i debase your currency >:3
I'd personally enjoy it if it was you doing the debasing
Base ten then
Please tell me base 16 isn't trying to hex-a-decimal
Let me be the judge of that. Maybe you missed it, let me verify it for you.