130 in Roman numerals
CXXX
The number 130 is written CXXX in Roman numerals.
How CXXX breaks down
| Symbols | Value |
|---|---|
C | 100 |
XXX | 3 × 10 = 30 |
CXXX | 130 |
Every symbol here is written in descending order and simply added together — no subtractive pairs are involved.
Nearby numbers
| Number | Roman numeral |
|---|---|
| 125 | CXXV |
| 126 | CXXVI |
| 127 | CXXVII |
| 128 | CXXVIII |
| 129 | CXXIX |
| 130 | CXXX |
| 131 | CXXXI |
| 132 | CXXXII |
| 133 | CXXXIII |
| 134 | CXXXIV |
| 135 | CXXXV |
The seven symbols
I | 1 | C | 100 |
V | 5 | D | 500 |
X | 10 | M | 1,000 |
L | 50 |
130 in other notations
| Roman | CXXX |
| Binary | 10000010 |
| Hexadecimal | 82 |
| Octal | 202 |
| Written out | one hundred and thirty |
Writing it by hand
Work down through the symbol values, taking as many of each as will fit before moving to the next. For 130:
C = 100 remaining: 30
3 × X = 30 remaining: 0The result reads CXXX — 4 characters, against 3 digits in Arabic numerals.
Frequently asked questions
What is 130 in Roman numerals?
CXXX
How do you read CXXX?
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, XXX is 30, giving 130 in total.
How do you write 130 in words?
one hundred and thirty.
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.