Compare 303 vs 307
| Property | 303 | 307 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 31 × 1011 | 3071 |
| Prime factorization | 3 × 101 | 307 |
| Divisors count | 4 | 2 |
| Divisors | 1, 3, 101, 303 | 1, 307 |
| Number of properties | 1 | 9 |
| Chen primes | 47th | |
| Cousin primes (1st member) | 18th | |
| Good primes | 22nd | |
| Harmonic primes | 25th | |
| Isolated primes | 26th | |
| Lucky primes | 18th | |
| Primes | 63rd | |
| Prime triplets (1st member) | 18th | |
| Semiprimes | 97th | |
| Sexy primes (1st member) | 35th | |
| Roman numberals | CCCIII | CCCVII |
| Base 2 | 1001011112 | 1001100112 |
| Base 3 | 1020203 | 1021013 |
| Base 4 | 102334 | 103034 |
| Base 5 | 22035 | 22125 |
| Base 6 | 12236 | 12316 |
| Base 7 | 6127 | 6167 |
| Base 8 | 4578 | 4638 |
| Base 9 | 3669 | 3719 |
| Base 10 | 30310 | 30710 |
| Base 11 | 25611 | 25a11 |
| Base 12 | 21312 | 21712 |
| Base 13 | 1a413 | 1a813 |
| Base 14 | 17914 | 17d14 |
| Base 15 | 15315 | 15715 |
| Base 16 | 12f16 | 13316 |