997 in Roman Numerals
997 in Roman numerals is CMXCVII, and is spelled nine hundred ninety-seven.
How to write 997 in Roman numerals
To write 997 in Roman numerals, combine CM (900), XC (90) and VII (7) to get CMXCVII.
The numeral CMXCVII is read from left to right, from the largest value to the smallest, adding each symbol as you go. It uses subtractive notation — XC and CM — where a smaller symbol placed before a larger one is subtracted rather than added (for example, XC means 100 − 10 = 90).
| Value | Roman |
|---|---|
| 900 | CM |
| 90 | XC |
| 7 | VII |
| 997 | CMXCVII |
Facts about the number 997
- 997 is an odd number.
- 997 is a prime number: it has no divisors other than 1 and itself.
- The digits of 997 add up to 25.
- 997 has 2 divisors.
997 in other number systems
| Decimal | 997 |
| Roman | CMXCVII |
| Binary | 1111100101 |
| Octal | 1745 |
| Hexadecimal | 3E5 |
Frequently asked questions
How do you write 997 in Roman numerals?
997 is written as CMXCVII in Roman numerals.
What does the Roman numeral CMXCVII mean?
CMXCVII represents the number 997 (nine hundred ninety-seven).
Is 997 a prime number?
Yes, 997 is a prime number.
What is 997 in binary and hexadecimal?
997 is 1111100101 in binary and 3E5 in hexadecimal.
Related numbers
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