449 in Roman numerals

449 in Roman numerals is CDXLIX.

Pick any whole number from 1 to 3,999.

449 = \text{CDXLIX}

How to work it out

1
Take the biggest Roman value that fits, write its letter, subtract it, and repeat.
2
Here: 400 (CD) + 40 (XL) + 9 (IX) = 449.
3
Joined together: CDXLIX. (Four of the same letter in a row is never used: 4 is IV, 9 is IX, 40 is XL, 90 is XC, 400 is CD, 900 is CM.)

What is 449 in Roman numerals?

CDXLIX.

How do you read CDXLIX?

CDXLIX = 400 + 40 + 9 = 449.