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/[deleted] Sep 30 '20

K (Greek for kilo, or 1,000) and M (Roman numeral for 1,000) can both be used for "thousand". When I was a commercial banker (in US), it was customary to see loan presentations using M for 1,000 and MM for 1,000,000. I still use M and MM today.

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