512 in Roman numerals

512 in Roman numerals is DXII.

Pick any whole number from 1 to 3,999.

512 = \text{DXII}

How to work it out

1
Take the biggest Roman value that fits, write its letter, subtract it, and repeat.
2
Here: 500 (D) + 10 (X) + 1 (I) + 1 (I) = 512.
3
Joined together: DXII. (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 512 in Roman numerals?

DXII.

How do you read DXII?

DXII = 500 + 10 + 1 + 1 = 512.