odd, composite, perfect square · 361st positive integer
The number 361
361 is an odd composite number. It is the 361st positive integer.
Quick reference
| Prime factorization | 19 × 19 |
| Divisors | 1, 19, 361 |
| Binary | 101101001 |
| Hexadecimal | 0x169 |
| Roman numeral | CCCLXI |
| Digit sum | 10 |
| Properties | odd, composite, perfect square |
Reading 361 in NumGrid context
The 361 record above pulls directly from classical number theory plus NumGrid solver-derived puzzle statistics. What follows is the per-entity context — how 361 sits in the broader integer properties and number-guessing puzzles distribution and which underlying factors drive the headline numbers.
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.
Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for 361’s peers within positive integers within the NumGrid target pool. A single-entity reading without peer context can be misleading when an entity is an outlier on one axis but typical on another.
Frequently asked
Is 361 a prime number?
No. 361 is composite. Its prime factorization is 19 × 19.
What are the factors of 361?
The factors (divisors) of 361 are 1, 19, 361.
What is 361 in binary?
361 in binary is 101101001. In hexadecimal it's 169.
What is 361 as a Roman numeral?
361 in Roman numerals is CCCLXI.
What's the digit sum of 361?
Adding the digits of 361: 3 + 6 + 1 = 10.