Compare 163 vs 191
| Property | 163 | 191 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1631 | 1911 |
| Prime factorization | 163 | 191 |
| Divisors count | 2 | 2 |
| Divisors | 1, 163 | 1, 191 |
| Number of properties | 7 | 16 |
| Additive primes | 24th | |
| Chen primes | 34th | |
| Class 1+ primes | 14th | |
| Cousin primes (1st member) | 13th | |
| Good primes | 16th | |
| Harmonic primes | 15th | |
| Isolated primes | 15th | |
| Lucky primes | 12th | |
| Palindromic primes | 10th | |
| Pierpont primes | 12th | |
| Pierpont primes of the 2nd kind | 14th | |
| Primes | 38th | 43rd |
| Prime quadruplets (1st member) | 4th | |
| Prime triplets (1st member) | 13th | |
| Sexy primes (1st member) | 25th | |
| Sexy primes (2nd member) | 22nd | |
| Sexy prime triplets (3rd member) | 12th | |
| Solinas primes | 25th | |
| Sophie germain primes | 15th | |
| Super primes | 14th | |
| Thabit primes | 6th | |
| Twin primes (1st member) | 14th | |
| Roman numberals | CLXIII | CXCI |
| Base 2 | 101000112 | 101111112 |
| Base 3 | 200013 | 210023 |
| Base 4 | 22034 | 23334 |
| Base 5 | 11235 | 12315 |
| Base 6 | 4316 | 5156 |
| Base 7 | 3227 | 3627 |
| Base 8 | 2438 | 2778 |
| Base 9 | 2019 | 2329 |
| Base 10 | 16310 | 19110 |
| Base 11 | 13911 | 16411 |
| Base 12 | 11712 | 13b12 |
| Base 13 | c713 | 11913 |
| Base 14 | b914 | d914 |
| Base 15 | ad15 | cb15 |
| Base 16 | a316 | bf16 |