Compare 803 vs 809
| Property | 803 | 809 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 111 × 731 | 8091 |
| Prime factorization | 11 × 73 | 809 |
| Divisors count | 4 | 2 |
| Divisors | 1, 11, 73, 803 | 1, 809 |
| Number of properties | 1 | 7 |
| Additive primes | 74th | |
| Chen primes | 95th | |
| Good primes | 39th | |
| Primes | 140th | |
| Pythagorean primes | 68th | |
| Semiprimes | 244th | |
| Sophie germain primes | 35th | |
| Twin primes (1st member) | 31st | |
| Roman numberals | DCCCIII | DCCCIX |
| Base 2 | 11001000112 | 11001010012 |
| Base 3 | 10022023 | 10022223 |
| Base 4 | 302034 | 302214 |
| Base 5 | 112035 | 112145 |
| Base 6 | 34156 | 34256 |
| Base 7 | 22257 | 22347 |
| Base 8 | 14438 | 14518 |
| Base 9 | 10829 | 10889 |
| Base 10 | 80310 | 80910 |
| Base 11 | 67011 | 67611 |
| Base 12 | 56b12 | 57512 |
| Base 13 | 49a13 | 4a313 |
| Base 14 | 41514 | 41b14 |
| Base 15 | 38815 | 38e15 |
| Base 16 | 32316 | 32916 |