odd, composite · 215th positive integer
The number 215
215 is an odd composite number. It is the 215th positive integer.
Quick reference
| Prime factorization | 5 × 43 |
| Divisors | 1, 5, 43, 215 |
| Binary | 11010111 |
| Hexadecimal | 0xD7 |
| Roman numeral | CCXV |
| Digit sum | 8 |
| Properties | odd, composite |
Reading 215 in NumGrid context
The 215 record above pulls directly from classical number theory plus NumGrid solver-derived puzzle statistics. What follows is the per-entity context — how 215 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 215 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 215 a prime number?
No. 215 is composite. Its prime factorization is 5 × 43.
What are the factors of 215?
The factors (divisors) of 215 are 1, 5, 43, 215.
What is 215 in binary?
215 in binary is 11010111. In hexadecimal it's D7.
What is 215 as a Roman numeral?
215 in Roman numerals is CCXV.
What's the digit sum of 215?
Adding the digits of 215: 2 + 1 + 5 = 8.