Number
264 in Roman numerals
264 is written CCLXIV
Type any other number or numeral below to convert it.
Above 3,999? Type the barred part in brackets, e.g. (IV)CC = 4,200.
How CCLXIV is built
Roman numerals are written one decimal place at a time, largest first.
- CChundreds · 2C written 2 times: 2 × 100 = 200.
- LXtens · 6L (50) plus X (10) makes 60.
- IVones · 4I before V means 5 − 1 = 4. This saves writing IIII.
200 + 60 + 4 = 264
The pair IV uses subtraction: a smaller letter before a larger one is taken away from it. Only six pairs work this way: IV, IX, XL, XC, CD and CM. More on subtraction
Mistakes to avoid
- Not CCLXIIII (8 letters). That adds everything up without subtraction. The Romans sometimes wrote numbers this way, and clocks still show 4 as IIII, but today CCLXIV (6 letters) is the standard.
About the number 264
- 264 is even and can be split into prime factors: 2 × 2 × 2 × 3 × 11, or in Roman numerals II × II × II × III × XI.
- CCLXIV has 6 letters. 396 of the numbers up to 1,000 have longer numerals.
Counting from 261 to 270
Every number from 261 to 270 starts CCLX (260); only the ending changes.
| Number | Roman numeral |
|---|---|
| 261 | CCLXI |
| 262 | CCLXII |
| 263 | CCLXIII |
| 264 | CCLXIV |
| 265 | CCLXV |
| 266 | CCLXVI |
| 267 | CCLXVII |
| 268 | CCLXVIII |
| 269 | CCLXIX |
| 270 | CCLXX |