How to write 73 in Roman numerals
Roman numerals are built place by place, from the largest value to the smallest. For 73 the places are 70 (tens), 3 (ones).
- Write 70 as
LXX. - Write 3 as
III.
Joined together, LXX + III gives LXXIII.
73 digit by digit
| Place | Value | Numeral | Rule used |
|---|---|---|---|
| tens | 70 | LXX | the five symbol plus two |
| ones | 3 | III | the symbol repeated three times (the limit) |
Check LXXIII by reading it back
Reading LXXIII from left to right and adding the pieces: LXX = 70, III = 3. Together that is 70 + 3 = 73, so LXXIII and 73 match.
Mistakes to avoid with LXXIII
- Never repeat a symbol more than three times in a row. When a fourth would be needed, the subtractive form takes over.
- Only I, X and C may be placed before a larger symbol to subtract, so LXXIII never contains forms such as VX or LC.
- Read LXXIII as one number, not letter by letter: add the values left to right, except where a smaller symbol sits before a larger one.
Facts about the number 73
- 73 is an odd number and a prime number.
- In binary 73 is
1001001and in hexadecimal it is49. - Written out, 73 is "seventy-three".
- The digits of 73 add up to 10.
Where you will see 73 in Roman numerals
Legal professionals encounter the number 73 formatted as LXXIII within heavily structured contracts or municipal codes. Drafters employ Roman numerals for high level article headings to create a clear visual hierarchy throughout complex regulatory documents.
Numbers near 73
FAQ
What is 73 in Roman numerals?
73 is written LXXIII in Roman numerals. It is built from LXX (70), III (3).
How do you write 73 in lowercase Roman numerals?
Lowercase Roman numerals use the same rules, so 73 is lxxiii. Lowercase is common for page numbers in a book's preface and for outline levels.
How do I convert any number to Roman numerals?
Split the number into thousands, hundreds, tens and ones, write each part with the symbols I, V, X, L, C, D and M, then join them from largest to smallest. Or paste it into the Roman numeral converter, which also converts back.
More roman numerals
- 72 (LXXII): previous page
- 74 (LXXIV): next page
- Roman numerals chart: the full list