321 in Roman Numerals
CCCXXI
321 in Roman numerals is CCCXXI, and is spelled three hundred twenty-one.
How to write 321 in Roman numerals
To write 321 in Roman numerals, combine CCC (300), XX (20) and I (1) to get CCCXXI.
The numeral CCCXXI is read from left to right, from the largest value to the smallest, adding each symbol as you go.
| Value | Roman |
|---|---|
| 300 | CCC |
| 20 | XX |
| 1 | I |
| 321 | CCCXXI |
Facts about the number 321
- 321 is an odd number.
- 321 is a composite number. Its prime factorization is 3 × 107.
- The digits of 321 add up to 6.
- 321 has 4 divisors.
321 in other number systems
| Decimal | 321 |
| Roman | CCCXXI |
| Binary | 101000001 |
| Octal | 501 |
| Hexadecimal | 141 |
Frequently asked questions
How do you write 321 in Roman numerals?
321 is written as CCCXXI in Roman numerals.
What does the Roman numeral CCCXXI mean?
CCCXXI represents the number 321 (three hundred twenty-one).
Is 321 a prime number?
No, 321 is a composite number.
What is 321 in binary and hexadecimal?
321 is 101000001 in binary and 141 in hexadecimal.
Related numbers
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