odd, prime · 997th positive integer
The number 997
997 is an odd prime number. It is the 997th positive integer.
Quick reference
| Prime factorization | 997 (prime) |
| Divisors | 1, 997 |
| Binary | 1111100101 |
| Hexadecimal | 0x3E5 |
| Roman numeral | CMXCVII |
| Digit sum | 25 |
| Properties | odd, prime |
Reading 997 in NumGrid context
The 997 record above pulls directly from classical number theory plus NumGrid solver-derived puzzle statistics. What follows is the per-entity context — how 997 sits in the broader integer properties and number-guessing puzzles distribution and which underlying factors drive the headline numbers.
The methodology behind every numeric value on this page is publicly documented on the classical number theory plus NumGrid solver-derived puzzle statistics portal and described in detail on this site’s methodology page. Refresh cadence varies by underlying series; the page surfaces the as-of date for each number so readers can trace any figure back to the source release.
For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for 997 is typically a peer within positive integers within the NumGrid target pool with similar size, similar exposure, or similar geography — not the national-level summary alone.
Frequently asked
Is 997 a prime number?
Yes. 997 is prime — its only divisors are 1 and itself.
What are the factors of 997?
The factors (divisors) of 997 are 1, 997.
What is 997 in binary?
997 in binary is 1111100101. In hexadecimal it's 3E5.
What is 997 as a Roman numeral?
997 in Roman numerals is CMXCVII.
What's the digit sum of 997?
Adding the digits of 997: 9 + 9 + 7 = 25.