1101 in Roman numerals

1101 in Roman numerals is MCI.

Pick any whole number from 1 to 3,999.

1101 = \text{MCI}

How to work it out

1
Take the biggest Roman value that fits, write its letter, subtract it, and repeat.
2
Here: 1000 (M) + 100 (C) + 1 (I) = 1101.
3
Joined together: MCI. (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 1101 in Roman numerals?

MCI.

How do you read MCI?

MCI = 1000 + 100 + 1 = 1101.