odd, composite · 143rd positive integer
The number 143
143 is an odd composite number. It is the 143rd positive integer.
Quick reference
| Prime factorization | 11 × 13 |
| Divisors | 1, 11, 13, 143 |
| Binary | 10001111 |
| Hexadecimal | 0x8F |
| Roman numeral | CXLIII |
| Digit sum | 8 |
| Properties | odd, composite |
Frequently asked
Is 143 a prime number?
No. 143 is composite. Its prime factorization is 11 × 13.
What are the factors of 143?
The factors (divisors) of 143 are 1, 11, 13, 143.
What is 143 in binary?
143 in binary is 10001111. In hexadecimal it's 8F.
What is 143 as a Roman numeral?
143 in Roman numerals is CXLIII.
What's the digit sum of 143?
Adding the digits of 143: 1 + 4 + 3 = 8.