# Q: How is 123 written in Roman Numerals?

A: CXXIII

## Why is 123 written in Roman Numerals as CXXIII?

Roman Numerals are an ancient way of writing numbers that originated in ancient Rome.

It is still used today, but mainly for date purposes (like with Super Bowl L for Super Bowl 50) or for movie series (Star Wars IV - A New Hope).

Here are the main symbols that are used:

### Basic Roman Numeral Symbols

 1 5 10 50 100 500 1,000 I V X L C D M

### Basic Combinations

 1 2 3 4 5 6 7 8 9 I II III IV V VI VII VIII IX
 10 20 30 40 50 60 70 80 90 X XX XXX XL L LX LXX LXXX XC
 100 200 300 400 500 600 700 800 900 C CC CCC CD D DC DCC DCCC CM

### Large Numbers

For numbers over 1,000, you put a dash over the top of the Roman Numeral to indicate multiplied by 1,000.

 5,000 10,000 50,000 100,000 500,000 1,000,000 V X L C D M

## How is 123 converted to Roman Numerals?

To convert 123 to Roman Numerals we need to split it up into place values (ones, tens, hundreds, etc.), like this:

Place Value Number Roman Numeral
Hundreds100C
Tens20XX
Ones3III

Please note, we skipped place values that equal 0.

You then combine them all together (starting from the top) to get CXXIII.

## How are the numbers near 123 written in Roman Numerals?

Number Roman Numeral
121 CXXI
122 CXXII
124 CXXIV
125 CXXV

### Explore more about the number 123:

General Questions
Factoring Questions
Calculation Questions
Miscellaneous Questions