even, composite · 258th positive integer
The number 258
258 is an even composite number. It is the 258th positive integer.
Quick reference
| Prime factorization | 2 × 3 × 43 |
| Divisors | 1, 2, 3, 6, 43, 86, 129, 258 |
| Binary | 100000010 |
| Hexadecimal | 0x102 |
| Roman numeral | CCLVIII |
| Digit sum | 15 |
| Properties | even, composite |
Reading 258 in NumGrid context
258 is one of the data points covered by this site’s integer properties and number-guessing puzzles dataset. The detail above comes directly from classical number theory plus NumGrid solver-derived puzzle statistics; the context that follows situates the headline numbers against the broader distribution across positive integers within the NumGrid target pool.
Every number on this page links back to classical number theory plus NumGrid solver-derived puzzle statistics; the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.
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 258 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 258 a prime number?
No. 258 is composite. Its prime factorization is 2 × 3 × 43.
What are the factors of 258?
The factors (divisors) of 258 are 1, 2, 3, 6, 43, 86, 129, 258.
What is 258 in binary?
258 in binary is 100000010. In hexadecimal it's 102.
What is 258 as a Roman numeral?
258 in Roman numerals is CCLVIII.
What's the digit sum of 258?
Adding the digits of 258: 2 + 5 + 8 = 15.