231 in Roman Numerals
CCXXXI
231 in Roman numerals is CCXXXI, and is spelled two hundred thirty-one.
How to write 231 in Roman numerals
To write 231 in Roman numerals, combine CC (200), XXX (30) and I (1) to get CCXXXI.
The numeral CCXXXI is read from left to right, from the largest value to the smallest, adding each symbol as you go.
| Value | Roman |
|---|---|
| 200 | CC |
| 30 | XXX |
| 1 | I |
| 231 | CCXXXI |
Facts about the number 231
- 231 is an odd number.
- 231 is a composite number. Its prime factorization is 3 × 7 × 11.
- The digits of 231 add up to 6.
- 231 has 8 divisors.
231 in other number systems
| Decimal | 231 |
| Roman | CCXXXI |
| Binary | 11100111 |
| Octal | 347 |
| Hexadecimal | E7 |
Frequently asked questions
How do you write 231 in Roman numerals?
231 is written as CCXXXI in Roman numerals.
What does the Roman numeral CCXXXI mean?
CCXXXI represents the number 231 (two hundred thirty-one).
Is 231 a prime number?
No, 231 is a composite number.
What is 231 in binary and hexadecimal?
231 is 11100111 in binary and E7 in hexadecimal.
Related numbers
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