Compare 187 vs 193
| Property | 187 | 193 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 111 × 171 | 1931 |
| Prime factorization | 11 × 17 | 193 |
| Divisors count | 4 | 2 |
| Divisors | 1, 11, 17, 187 | 1, 193 |
| Number of properties | 1 | 18 |
| Additive primes | 25th | |
| Cousin primes (1st member) | 14th | |
| Cuban primes 2 | 3rd | |
| Happy primes | 12th | |
| Harmonic primes | 16th | |
| Long primes | 17th | |
| Lucky primes | 13th | |
| Pierpont primes | 13th | |
| Primes | 44th | |
| Prime quadruplets (2nd member) | 4th | |
| Prime triplets (1st member) | 14th | |
| Prime triplets (2nd member) | 13th | |
| Proth primes | 8th | |
| Pythagorean primes | 20th | |
| Semiprimes | 61st | |
| Sexy primes (1st member) | 26th | |
| Solinas primes | 26th | |
| Thabit primes of the 2nd kind | 4th | |
| Twin primes (2nd member) | 14th | |
| Roman numberals | CLXXXVII | CXCIII |
| Base 2 | 101110112 | 110000012 |
| Base 3 | 202213 | 210113 |
| Base 4 | 23234 | 30014 |
| Base 5 | 12225 | 12335 |
| Base 6 | 5116 | 5216 |
| Base 7 | 3557 | 3647 |
| Base 8 | 2738 | 3018 |
| Base 9 | 2279 | 2349 |
| Base 10 | 18710 | 19310 |
| Base 11 | 16011 | 16611 |
| Base 12 | 13712 | 14112 |
| Base 13 | 11513 | 11b13 |
| Base 14 | d514 | db14 |
| Base 15 | c715 | cd15 |
| Base 16 | bb16 | c116 |