odd, composite · 247th positive integer
The number 247
247 is an odd composite number. It is the 247th positive integer.
Quick reference
| Prime factorization | 13 × 19 |
| Divisors | 1, 13, 19, 247 |
| Binary | 11110111 |
| Hexadecimal | 0xF7 |
| Roman numeral | CCXLVII |
| Digit sum | 13 |
| Properties | odd, composite |
Frequently asked
Is 247 a prime number?
No. 247 is composite. Its prime factorization is 13 × 19.
What are the factors of 247?
The factors (divisors) of 247 are 1, 13, 19, 247.
What is 247 in binary?
247 in binary is 11110111. In hexadecimal it's F7.
What is 247 as a Roman numeral?
247 in Roman numerals is CCXLVII.
What's the digit sum of 247?
Adding the digits of 247: 2 + 4 + 7 = 13.