odd, composite, perfect square · 961st positive integer
The number 961
961 is an odd composite number. It is the 961st positive integer.
Quick reference
| Prime factorization | 31 × 31 |
| Divisors | 1, 31, 961 |
| Binary | 1111000001 |
| Hexadecimal | 0x3C1 |
| Roman numeral | CMLXI |
| Digit sum | 16 |
| Properties | odd, composite, perfect square |
Reading 961 in NumGrid context
For 961, the underlying data on this page comes from classical number theory plus NumGrid solver-derived puzzle statistics. The breakdown above is the federal record; the paragraphs below add the per-entity context that makes the headline numbers usable for a real decision rather than just a data lookup.
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 961’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 961 a prime number?
No. 961 is composite. Its prime factorization is 31 × 31.
What are the factors of 961?
The factors (divisors) of 961 are 1, 31, 961.
What is 961 in binary?
961 in binary is 1111000001. In hexadecimal it's 3C1.
What is 961 as a Roman numeral?
961 in Roman numerals is CMLXI.
What's the digit sum of 961?
Adding the digits of 961: 9 + 6 + 1 = 16.