23 in Roman Numerals
XXIII
23 in Roman numerals is XXIII, and is spelled twenty-three.
How to write 23 in Roman numerals
To write 23 in Roman numerals, combine XX (20) and III (3) to get XXIII.
The numeral XXIII is read from left to right, from the largest value to the smallest, adding each symbol as you go.
| Value | Roman |
|---|---|
| 20 | XX |
| 3 | III |
| 23 | XXIII |
Facts about the number 23
- 23 is an odd number.
- 23 is a prime number: it has no divisors other than 1 and itself.
- The digits of 23 add up to 5.
- 23 has 2 divisors.
23 in other number systems
| Decimal | 23 |
| Roman | XXIII |
| Binary | 10111 |
| Octal | 27 |
| Hexadecimal | 17 |
Frequently asked questions
How do you write 23 in Roman numerals?
23 is written as XXIII in Roman numerals.
What does the Roman numeral XXIII mean?
XXIII represents the number 23 (twenty-three).
Is 23 a prime number?
Yes, 23 is a prime number.
What is 23 in binary and hexadecimal?
23 is 10111 in binary and 17 in hexadecimal.
Related numbers
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