37 in Roman numerals
XXXVII
The number 37 is written XXXVII in Roman numerals.
How XXXVII breaks down
| Symbols | Value |
|---|---|
XXX | 3 × 10 = 30 |
V | 5 |
II | 2 × 1 = 2 |
XXXVII | 37 |
Every symbol here is written in descending order and simply added together — no subtractive pairs are involved.
Nearby numbers
| Number | Roman numeral |
|---|---|
| 32 | XXXII |
| 33 | XXXIII |
| 34 | XXXIV |
| 35 | XXXV |
| 36 | XXXVI |
| 37 | XXXVII |
| 38 | XXXVIII |
| 39 | XXXIX |
| 40 | XL |
| 41 | XLI |
| 42 | XLII |
The seven symbols
I | 1 | C | 100 |
V | 5 | D | 500 |
X | 10 | M | 1,000 |
L | 50 |
37 in other notations
| Roman | XXXVII |
| Binary | 100101 |
| Hexadecimal | 25 |
| Octal | 45 |
| Written out | thirty-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 37:
3 × X = 30 remaining: 7
V = 5 remaining: 2
2 × I = 2 remaining: 0The result reads XXXVII — 6 characters, against 2 digits in Arabic numerals. The verbosity at numbers like this is precisely why positional notation replaced the system for arithmetic.
Frequently asked questions
What is 37 in Roman numerals?
XXXVII
How do you read XXXVII?
Work left to right, adding each symbol — except where a smaller symbol precedes a larger one, in which case it is subtracted. XXX is 30, V is 5, II is 2, giving 37 in total.
How do you write 37 in words?
thirty-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.