Konverter tall til og fra romertall
Numbers above 3,999 use vinculum notation: a line above a numeral multiplies its value by 1,000.
So IXDCXCVIII = 9 698.
Order I̅X̅DCXCVIII on a product
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Did you know?
Why Movies Use Roman Numerals in Credits
Look at the end credits of almost any film and you'll see the year in Roman numerals: MMXXVI instead of 2026. This tradition started as a way to make the copyright year less obvious — studios didn't want audiences to know immediately how old a film was during reruns. The practice stuck, and now it's just how it's done.
Read more →Try Multiplying XLVII by CCXIV
That's 47 times 214. In Hindu-Arabic numerals, you can do it on paper in 30 seconds. In Roman numerals, you need an abacus and a headache. This isn't a minor inconvenience — it made advanced science, algebra, and eventually calculus essentially impossible. The Romans built aqueducts and roads, but they did their math on counting boards.
Read more →Hvor kommer romertall fra?
Man tror romertall stammer fra håndsignaler og tellemerker. Streken I representerer en finger, V representerer åpningen mellom tommel og fingre for fem, og X representerer kryssede hender for ti. Bokstavene L, C, D og M kommer fra modifikasjoner av greske bokstaver som chi, theta og phi for å representere 50, 100, 500 og 1 000. Over tid ble disse merkene til de latinske bokstavene folk kjenner igjen i dag. Det finnes ingen 0 i det romerske alfabetet, ettersom konseptet for tallet 0 ikke ble fullt utviklet før India oppfant det rundt 600 e.Kr. / 10600 HE.