odd, prime · 73rd positive integer
The number 73
73 is an odd prime number. It is the 73rd positive integer.
Quick reference
| Prime factorization | 73 (prime) |
| Divisors | 1, 73 |
| Binary | 1001001 |
| Hexadecimal | 0x49 |
| Roman numeral | LXXIII |
| Digit sum | 10 |
| Properties | odd, prime |
Frequently asked
Is 73 a prime number?
Yes. 73 is prime — its only divisors are 1 and itself.
What are the factors of 73?
The factors (divisors) of 73 are 1, 73.
What is 73 in binary?
73 in binary is 1001001. In hexadecimal it's 49.
What is 73 as a Roman numeral?
73 in Roman numerals is LXXIII.
What's the digit sum of 73?
Adding the digits of 73: 7 + 3 = 10.