Number
564 in Roman numerals
564 is written DLXIV
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 DLXIV is built
Roman numerals are written one decimal place at a time, largest first.
- Dhundreds · 5D is 500.
- LXtens · 6L (50) plus X (10) makes 60.
- IVones · 4I before V means 5 − 1 = 4. This saves writing IIII.
500 + 60 + 4 = 564
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 DLXIIII (7 letters). That adds everything up without subtraction. The Romans sometimes wrote numbers this way, and clocks still show 4 as IIII, but today DLXIV (5 letters) is the standard.
About the number 564
- 564 is even and can be split into prime factors: 2 × 2 × 3 × 47, or in Roman numerals II × II × III × XLVII.
- DLXIV has 5 letters. 604 of the numbers up to 1,000 have longer numerals.
Counting from 561 to 570
Every number from 561 to 570 starts DLX (560); only the ending changes.
| Number | Roman numeral |
|---|---|
| 561 | DLXI |
| 562 | DLXII |
| 563 | DLXIII |
| 564 | DLXIV |
| 565 | DLXV |
| 566 | DLXVI |
| 567 | DLXVII |
| 568 | DLXVIII |
| 569 | DLXIX |
| 570 | DLXX |