odd, composite, triangular · 105th positive integer
The number 105
105 is an odd composite number. It is the 105th positive integer.
Quick reference
| Prime factorization | 3 × 5 × 7 |
| Divisors | 1, 3, 5, 7, 15, 21, 35, 105 |
| Binary | 1101001 |
| Hexadecimal | 0x69 |
| Roman numeral | CV |
| Digit sum | 6 |
| Properties | odd, composite, triangular |
Frequently asked
Is 105 a prime number?
No. 105 is composite. Its prime factorization is 3 × 5 × 7.
What are the factors of 105?
The factors (divisors) of 105 are 1, 3, 5, 7, 15, 21, 35, 105.
What is 105 in binary?
105 in binary is 1101001. In hexadecimal it's 69.
What is 105 as a Roman numeral?
105 in Roman numerals is CV.
What's the digit sum of 105?
Adding the digits of 105: 1 + 0 + 5 = 6.