23 in Roman Numerals
How to write the number 23 in Roman numerals, with the full place-value breakdown.
The number 23 in Roman numerals
XXIII
Place-value breakdown
23 = 20 + 3, so XXIII = XX + III. Roman numerals are written from largest to smallest value, left to right:
| Place | Value | Roman | Rule |
|---|---|---|---|
| Tens | 20 | XX | Additive rule: XX = 20 (symbols are simply added) |
| Ones | 3 | III | Additive rule: III = 3 (symbols are simply added) |
About the number 23
The number 23 is written XXIII in Roman numerals.
Looking for the ordinal form — "23rd in Roman numerals"? Roman notation makes no distinction between cardinal and ordinal numbers, so "23rd" is also written XXIII.
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Roman numeral
XXIII