140 in Roman numerals

140 in Roman numerals is CXL.

Pick any whole number from 1 to 3,999.

140 = \text{CXL}

How to work it out

1
Take the biggest Roman value that fits, write its letter, subtract it, and repeat.
2
Here: 100 (C) + 40 (XL) = 140.
3
Joined together: CXL. (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.)

Value	Letters
100	C
40	XL

What is 140 in Roman numerals?

CXL.

How do you read CXL?

CXL = 100 + 40 = 140.