49 in Roman Numerals
49 written in Roman numeralsXLIX
49 = XLIX. Read left to right: XL (40) + IX (9) = 49.
Going the other way, the Roman numeral XLIX equals the number 49.
How to write 49 in Roman numerals
- Tens: 40 is XL.
- Ones: 9 is IX.
- Put them together, largest first: XL + IX = XLIX.
XLIX uses subtractive notation: XL means 40, IX means 9. A smaller symbol placed before a larger one is subtracted from it.
A common mistake is writing 49 as IL. Standard Roman numerals only allow I before V and X, X before L and C, and C before D and M, and no symbol repeats more than three times, so the correct form is XLIX.
49 is an odd number, a perfect square (7 × 7) and written with 4 symbols in Roman numerals.
Where you might see XLIX
- Super Bowl XLIX was the 49th Super Bowl, played in early 2015.
- Book chapters, outlines, movie sequels and royal names use numerals like XLIX for the number 49.
Multiples of XLIX
| Sum | Number | Roman numeral |
|---|---|---|
| 49 × 2 | 98 | XCVIII |
| 49 × 3 | 147 | CXLVII |
| 49 × 5 | 245 | CCXLV |
| 49 × 10 | 490 | CDXC |
Numerals near XLIX
| Number | Roman numeral |
|---|---|
| 44 | XLIV |
| 45 | XLV |
| 46 | XLVI |
| 47 | XLVII |
| 48 | XLVIII |
| 49 | XLIX |
| 50 | L |
| 51 | LI |
| 52 | LII |
| 53 | LIII |
| 54 | LIV |
Questions
How do you write 49 in Roman numerals?
49 is written XLIX.
What number is XLIX?
XLIX is 49.