240 in Roman numerals
240 in Roman numerals
CCXL
240 is written CCXL in Roman numerals. That is 3 symbol groups added together, reading left to right from the largest value down.
How it breaks down
| Group | Value | Subtraction | Running total |
|---|---|---|---|
| C | 100 | — | 100 |
| C | 100 | — | 200 |
| XL | 40 | L − X | 240 |
Why the smaller symbol comes first
CCXL uses subtractive notation in one place: XL means L minus X, or 40. A smaller symbol placed before a larger one is subtracted from it rather than added, which is why IX is nine and not eleven.
Only six such pairs are valid — IV, IX, XL, XC, CD and CM. That restriction is what makes the notation unambiguous: IIII and IC both look like they should work, but neither is standard, and only one spelling of any number is correct.
The symbols
| Symbol | Value | Used here |
|---|---|---|
| I | 1 | no |
| V | 5 | no |
| X | 10 | yes — 1× |
| L | 50 | yes — 1× |
| C | 100 | yes — 2× |
| D | 500 | no |
| M | 1,000 | no |
The same number, other ways
- In words
- Two hundred forty
- Roman numeral
- CCXL
- Symbol count
- 4 characters
- Binary
- 11110000
- Hexadecimal
- F0
The numbers either side
| Number | Roman numeral |
|---|---|
| 238 | CCXXXVIII |
| 239 | CCXXXIX |
| 240 | CCXL ← |
| 241 | CCXLI |
| 242 | CCXLII |
Common questions
- What is 240 in Roman numerals?
- 240 is CCXL.
- What does CCXL mean?
- CCXL is the Roman numeral for 240 — 100 + 100 + 40.
- How do you write 240 in Roman numerals?
- Take the largest value that fits and repeat until nothing is left: C (100), then C (100), then XL (40). That gives CCXL.
Related pages
- 238 in Roman numerals CCXXXVIII
- 239 in Roman numerals CCXXXIX
- 241 in Roman numerals CCXLI
- 242 in Roman numerals CCXLII
- 4 in Roman numerals IV
- 9 in Roman numerals IX
- 14 in Roman numerals XIV
- 19 in Roman numerals XIX
- 40 in Roman numerals XL
- 42 in Roman numerals XLII
- 49 in Roman numerals XLIX
- 50 in Roman numerals L
Sources
- Calculated on this page — At One Place