140 in Roman numerals
CXL
The number 140 is written CXL in Roman numerals.
How CXL breaks down
| Symbols | Value |
|---|---|
C | 100 |
XL | 40 |
CXL | 140 |
This numeral uses the subtractive rule: a smaller symbol placed before a larger one is subtracted from it. Only six such pairs are legal — IV (4), IX (9), XL (40), XC (90), CD (400) and CM (900).
Nearby numbers
| Number | Roman numeral |
|---|---|
| 135 | CXXXV |
| 136 | CXXXVI |
| 137 | CXXXVII |
| 138 | CXXXVIII |
| 139 | CXXXIX |
| 140 | CXL |
| 141 | CXLI |
| 142 | CXLII |
| 143 | CXLIII |
| 144 | CXLIV |
| 145 | CXLV |
The seven symbols
I | 1 | C | 100 |
V | 5 | D | 500 |
X | 10 | M | 1,000 |
L | 50 |
140 in other notations
| Roman | CXL |
| Binary | 10001100 |
| Hexadecimal | 8C |
| Octal | 214 |
| Written out | one hundred and forty |
Writing it by hand
Work down through the symbol values, taking as many of each as will fit before moving to the next. For 140:
C = 100 remaining: 40
XL = 40 remaining: 0The result reads CXL — 3 characters, against 3 digits in Arabic numerals.
Frequently asked questions
What is 140 in Roman numerals?
CXL
How do you read CXL?
Work left to right, adding each symbol — except where a smaller symbol precedes a larger one, in which case it is subtracted. C is 100, XL is 40, giving 140 in total.
How do you write 140 in words?
one hundred and forty.
Why is there no zero?
Roman numerals have no symbol for zero. The concept reached Europe only with Hindu-Arabic numerals, centuries after the system was in use — which is a large part of why it was eventually replaced for arithmetic.