odd, prime · 443rd positive integer
The number 443
443 is an odd prime number. It is the 443rd positive integer.
Quick reference
| Prime factorization | 443 (prime) |
| Divisors | 1, 443 |
| Binary | 110111011 |
| Hexadecimal | 0x1BB |
| Roman numeral | CDXLIII |
| Digit sum | 11 |
| Properties | odd, prime |
Reading 443 in NumGrid context
The 443 record above pulls directly from classical number theory plus NumGrid solver-derived puzzle statistics. What follows is the per-entity context — how 443 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 443’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 443 a prime number?
Yes. 443 is prime — its only divisors are 1 and itself.
What are the factors of 443?
The factors (divisors) of 443 are 1, 443.
What is 443 in binary?
443 in binary is 110111011. In hexadecimal it's 1BB.
What is 443 as a Roman numeral?
443 in Roman numerals is CDXLIII.
What's the digit sum of 443?
Adding the digits of 443: 4 + 4 + 3 = 11.