1,997 in Roman numerals
MCMXCVII
The number 1,997 is written MCMXCVII in Roman numerals. As a year it appears in copyright lines and cornerstones written this way.
How MCMXCVII breaks down
| Symbols | Value |
|---|---|
M | 1,000 |
CM | 900 |
XC | 90 |
V | 5 |
II | 2 × 1 = 2 |
MCMXCVII | 1,997 |
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 |
|---|---|
| 1,992 | MCMXCII |
| 1,993 | MCMXCIII |
| 1,994 | MCMXCIV |
| 1,995 | MCMXCV |
| 1,996 | MCMXCVI |
| 1,997 | MCMXCVII |
| 1,998 | MCMXCVIII |
| 1,999 | MCMXCIX |
| 2,000 | MM |
| 2,001 | MMI |
| 2,002 | MMII |
The seven symbols
I | 1 | C | 100 |
V | 5 | D | 500 |
X | 10 | M | 1,000 |
L | 50 |
1,997 in other notations
| Roman | MCMXCVII |
| Binary | 11111001101 |
| Hexadecimal | 7CD |
| Octal | 3715 |
| Written out | one thousand nine hundred and ninety-seven |
Writing it by hand
Work down through the symbol values, taking as many of each as will fit before moving to the next. For 1,997:
M = 1000 remaining: 997
CM = 900 remaining: 97
XC = 90 remaining: 7
V = 5 remaining: 2
2 × I = 2 remaining: 0The result reads MCMXCVII — 8 characters, against 4 digits in Arabic numerals.
Frequently asked questions
What is 1,997 in Roman numerals?
MCMXCVII
How do you read MCMXCVII?
Work left to right, adding each symbol — except where a smaller symbol precedes a larger one, in which case it is subtracted. M is 1,000, CM is 900, XC is 90, V is 5, II is 2, giving 1,997 in total.
How do you write 1,997 in words?
one thousand nine hundred and ninety-seven.
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.