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Fun fact: how many digits get lumped together in a digit grouping is not universal and varies between different languages and cultures globally: https://en.wiki

• neom 4y ago
  I used to work on bizdev with a German group and it took me a long time to catch on: "The character used as the thousands separator In the United States, this character is a comma (,). In Germany, it is a period (.). Thus one thousand and twenty-five is displayed as 1,025 in the United States and 1.025 in Germany. In Sweden, the thousands separator is a space. The character used as the decimal separator In the United States, this character is a period (.). In Germany, it is a comma (,). Thus one thousand twenty-five and seven tenths is displayed as 1,025.7 in the United States and 1.025,7 in Germany."
  • smoe 4y ago
    Switzerland, where I'm from uses 1'023.7, often 1'023,7 in handwriting and at least in my region when spoken you also say comma. So it took my a while to parse as I become more and more exposed to number formats from surrounding countries and the US.
    • boringg 4y ago
      Everything in this message thread sounds like an annoying data processing problem if you ever have to do numbers between countries. Regex rules aren't universal for the comma issues apparently.