How to write 2015 in Roman numerals
Roman numerals are built place by place, from the largest value to the smallest. For 2015 the places are 2000 (thousands), 10 (tens), 5 (ones).
- Write 2000 as
MM. - Write 10 as
X. - Write 5 as
V.
Joined together, MM + X + V gives MMXV.
2015 digit by digit
| Place | Value | Numeral | Rule used |
|---|---|---|---|
| thousands | 2000 | MM | the symbol repeated twice |
| tens | 10 | X | one symbol |
| ones | 5 | V | the five symbol on its own |
Check MMXV by reading it back
Reading MMXV from left to right and adding the pieces: MM = 2000, X = 10, V = 5. Together that is 2000 + 10 + 5 = 2015, so MMXV and 2015 match.
Mistakes to avoid with MMXV
- 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 MMXV never contains forms such as VX or LC.
- Read MMXV 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 2015
- 2015 is an odd number and composite, with prime factors 5 x 13 x 31.
- In binary 2015 is
11111011111and in hexadecimal it is7DF. - Written out, 2015 is "two thousand fifteen".
- The digits of 2015 add up to 8.
- As a year, 2015 was a common year with 365 days and belongs to the 21st century.
Where you will see 2015 in Roman numerals
The copyright notice for 2015 reads MMXV at the end of television programs aired that year. Networks write the year in Roman numerals to comply with standard industry formatting, which treats the copyright line as a formal legal element rather than plain text.
Numbers near 2015
FAQ
What is 2015 in Roman numerals?
2015 is written MMXV in Roman numerals. It is built from MM (2000), X (10), V (5).
How do you write 2015 in lowercase Roman numerals?
Lowercase Roman numerals use the same rules, so 2015 is mmxv. 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
- 2014 (MMXIV): previous page
- 2016 (MMXVI): next page
- Roman numerals chart: the full list