1001 in Roman Numerals
Decomposition
1000 + 1
M + I
MI
Symbol breakdown
| Token | Value | Notation |
|---|---|---|
| M | 1000 | Additive — M = 1000 |
| I | 1 | Additive — I = 1 |
Therefore: 1000 + 1 = 1001
Subtractive pairs
MI is written entirely with additive combinations—no IV, IX, XL, XC, CD, or CM pairs appear.
Neighboring values
| Number | Roman numeral |
|---|---|
| 997 | CMXCVII |
| 998 | CMXCVIII |
| 999 | CMXCIX |
| 1000 | M |
| 1001 | MI |
| 1002 | MII |
| 1003 | MIII |
| 1004 | MIV |
| 1005 | MV |
Related round numbers
4 · IV
9 · IX
40 · XL
49 · XLIX
90 · XC
99 · XCIX
400 · CD
500 · D
900 · CM
950 · CML
990 · CMXC
1000 · M
Related chart: Roman numerals 1000–3999 · Interactive chart tool
Common questions about 1001
What is 1001 in Roman numerals?
1001 in Roman numerals is MI.
How do you write 1001 in Roman numerals?
Write 1001 as MI using additive combinations of the standard symbols.
Is MI the correct Roman numeral for 1001?
Yes. MI is the canonical standard Roman numeral for 1001 in the 1–3999 range.
What number is MI?
MI equals 1001.
Link to this reference
Teachers and writers are welcome to link to this page.
https://roman-numerals.net/numbers/1001-in-roman-numerals/