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84 in Roman Numerals

How to write the number 84 in Roman numerals, with the full place-value breakdown.

The number 84 in Roman numerals

LXXXIV

Place-value breakdown

84 = 80 + 4, so LXXXIV = LXXX + IV. Roman numerals are written from largest to smallest value, left to right:

PlaceValueRomanRule
Tens80LXXXAdditive rule: LXXX = 80 (symbols are simply added)
Ones4IVSubtractive rule: IV = 5 − 1 (a smaller symbol before a larger one is subtracted)

About the number 84

The number 84 is written LXXXIV in Roman numerals.

Looking for the ordinal form — "84th in Roman numerals"? Roman notation makes no distinction between cardinal and ordinal numbers, so "84th" is also written LXXXIV.

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Roman numeral

LXXXIV

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