165 in Roman numerals

165 in Roman numerals is CLXV.

Pick any whole number from 1 to 3,999.

165 = \text{CLXV}

How to work it out

1
Take the biggest Roman value that fits, write its letter, subtract it, and repeat.
2
Here: 100 (C) + 50 (L) + 10 (X) + 5 (V) = 165.
3
Joined together: CLXV. (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 165 in Roman numerals?

CLXV.

How do you read CLXV?

CLXV = 100 + 50 + 10 + 5 = 165.