odd, prime · 109th positive integer
The number 109
109 is an odd prime number. It is the 109th positive integer.
Quick reference
| Prime factorization | 109 (prime) |
| Divisors | 1, 109 |
| Binary | 1101101 |
| Hexadecimal | 0x6D |
| Roman numeral | CIX |
| Digit sum | 10 |
| Properties | odd, prime |
Reading 109 in NumGrid context
The 109 record above pulls directly from classical number theory plus NumGrid solver-derived puzzle statistics. What follows is the per-entity context — how 109 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 109’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 109 a prime number?
Yes. 109 is prime — its only divisors are 1 and itself.
What are the factors of 109?
The factors (divisors) of 109 are 1, 109.
What is 109 in binary?
109 in binary is 1101101. In hexadecimal it's 6D.
What is 109 as a Roman numeral?
109 in Roman numerals is CIX.
What's the digit sum of 109?
Adding the digits of 109: 1 + 0 + 9 = 10.