Compare 127 vs 191
| Property | 127 | 191 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1271 | 1911 |
| Prime factorization | 127 | 191 |
| Divisors count | 2 | 2 |
| Divisors | 1, 127 | 1, 191 |
| Number of properties | 13 | 16 |
| Additive primes | 24th | |
| Chen primes | 25th | 34th |
| Class 1+ primes | 13th | 14th |
| Cousin primes (1st member) | 12th | |
| Cuban primes 1 | 5th | |
| Double mersenne primes | 2nd | |
| Good primes | 13th | 16th |
| Harmonic primes | 15th | |
| Isolated primes | 12th | |
| Lucky primes | 10th | |
| Mersenne primes | 4th | |
| Palindromic primes | 10th | |
| Pierpont primes of the 2nd kind | 13th | 14th |
| Primes | 31st | 43rd |
| Prime quadruplets (1st member) | 4th | |
| Prime triplets (1st member) | 13th | |
| Sexy primes (1st member) | 25th | |
| Solinas primes | 22nd | 25th |
| Sophie germain primes | 15th | |
| Super primes | 11th | 14th |
| Thabit primes | 6th | |
| Twin primes (1st member) | 14th | |
| Roman numberals | CXXVII | CXCI |
| Base 2 | 11111112 | 101111112 |
| Base 3 | 112013 | 210023 |
| Base 4 | 13334 | 23334 |
| Base 5 | 10025 | 12315 |
| Base 6 | 3316 | 5156 |
| Base 7 | 2417 | 3627 |
| Base 8 | 1778 | 2778 |
| Base 9 | 1519 | 2329 |
| Base 10 | 12710 | 19110 |
| Base 11 | 10611 | 16411 |
| Base 12 | a712 | 13b12 |
| Base 13 | 9a13 | 11913 |
| Base 14 | 9114 | d914 |
| Base 15 | 8715 | cb15 |
| Base 16 | 7f16 | bf16 |