15 in Roman Numerals
XV
15 in Roman numerals is XV, and is spelled fifteen.
How to write 15 in Roman numerals
To write 15 in Roman numerals, combine X (10) and V (5) to get XV.
The numeral XV is read from left to right, from the largest value to the smallest, adding each symbol as you go.
| Value | Roman |
|---|---|
| 10 | X |
| 5 | V |
| 15 | XV |
Facts about the number 15
- 15 is an odd number.
- 15 is a composite number. Its prime factorization is 3 × 5.
- The digits of 15 add up to 6.
- 15 has 4 divisors.
15 in other number systems
| Decimal | 15 |
| Roman | XV |
| Binary | 1111 |
| Octal | 17 |
| Hexadecimal | F |
Frequently asked questions
How do you write 15 in Roman numerals?
15 is written as XV in Roman numerals.
What does the Roman numeral XV mean?
XV represents the number 15 (fifteen).
Is 15 a prime number?
No, 15 is a composite number.
What is 15 in binary and hexadecimal?
15 is 1111 in binary and F in hexadecimal.
Related numbers
Or open 15 in the converter and browse the full Roman numerals chart.