odd, prime · 223rd positive integer
The number 223
223 is an odd prime number. It is the 223rd positive integer.
Quick reference
| Prime factorization | 223 (prime) |
| Divisors | 1, 223 |
| Binary | 11011111 |
| Hexadecimal | 0xDF |
| Roman numeral | CCXXIII |
| Digit sum | 7 |
| Properties | odd, prime |
Frequently asked
Is 223 a prime number?
Yes. 223 is prime — its only divisors are 1 and itself.
What are the factors of 223?
The factors (divisors) of 223 are 1, 223.
What is 223 in binary?
223 in binary is 11011111. In hexadecimal it's DF.
What is 223 as a Roman numeral?
223 in Roman numerals is CCXXIII.
What's the digit sum of 223?
Adding the digits of 223: 2 + 2 + 3 = 7.