How to write 104 in Roman numerals
Roman numerals are built place by place, from the largest value to the smallest. For 104 the places are 100 (hundreds), 4 (ones).
- Write 100 as
C. - Write 4 as
IV.
Joined together, C + IV gives CIV.
104 digit by digit
| Place | Value | Numeral | Rule used |
|---|---|---|---|
| hundreds | 100 | C | one symbol |
| ones | 4 | IV | subtractive: one symbol before the five symbol |
Check CIV by reading it back
Reading CIV from left to right and adding the pieces: C = 100, IV = 4. Together that is 100 + 4 = 104, so CIV and 104 match.
Mistakes to avoid with CIV
- Do not write the 4s and 9s additively. 104 uses subtractive pairs (
IVfor 4), not strings like IIII or VIIII. - Only I, X and C may be placed before a larger symbol to subtract, so CIV never contains forms such as VX or LC.
- Read CIV 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 104
- 104 is an even number and composite, with prime factors 23 x 13.
- In binary 104 is
1101000and in hexadecimal it is68. - Written out, 104 is "one hundred four".
- The digits of 104 add up to 5.
Where you will see 104 in Roman numerals
If a sporting event used continuous annual numbering, the one hundred fourth edition would be CIV. Organizers favor Roman numerals for milestone numbers like 104 to lend the occasion a sense of history and prestige.
Numbers near 104
FAQ
What is 104 in Roman numerals?
104 is written CIV in Roman numerals. It is built from C (100), IV (4).
How do you write 104 in lowercase Roman numerals?
Lowercase Roman numerals use the same rules, so 104 is civ. 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
- 103 (CIII): previous page
- 105 (CV): next page
- Roman numerals chart: the full list