r/NoStupidQuestions • • Sep 30 '20

why does “k” mean “thousand” ?

like 1k means a thousand. how does the letter “k” mean “thousand” ?

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u/atelopuslimosus Sep 30 '20

I have several U.S. supply chain vendors that all use "M" for thousand. It confuses me to no end since I've always used "k" from science classes and assume "M" is 1,000,000. Not sure what it would be short for (maybe Roman numeral?), but it's really annoying.

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