Compare 71 vs 191
| Property | 71 | 191 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 711 | 1911 |
| Prime factorization | 71 | 191 |
| Divisors count | 2 | 2 |
| Divisors | 1, 71 | 1, 191 |
| Number of properties | 13 | 16 |
| Additive primes | 24th | |
| Centered heptagonal primes | 2nd | |
| Chen primes | 18th | 34th |
| Class 1+ primes | 11th | 14th |
| Cousin primes (2nd member) | 7th | |
| Emirps | 5th | |
| Good primes | 10th | 16th |
| Harmonic primes | 15th | |
| Multiplicative primes | 8th | |
| Palindromic primes | 10th | |
| Pierpont primes of the 2nd kind | 11th | 14th |
| Primes | 20th | 43rd |
| Prime quadruplets (1st member) | 4th | |
| Prime triplets (1st member) | 13th | |
| Prime triplets (2nd member) | 8th | |
| Right-truncatable primes | 11th | |
| Sexy primes (1st member) | 25th | |
| Solinas primes | 17th | 25th |
| Sophie germain primes | 15th | |
| Super primes | 14th | |
| Thabit primes | 6th | |
| Twin primes (1st member) | 8th | 14th |
| Roman numberals | LXXI | CXCI |
| Base 2 | 10001112 | 101111112 |
| Base 3 | 21223 | 210023 |
| Base 4 | 10134 | 23334 |
| Base 5 | 2415 | 12315 |
| Base 6 | 1556 | 5156 |
| Base 7 | 1317 | 3627 |
| Base 8 | 1078 | 2778 |
| Base 9 | 789 | 2329 |
| Base 10 | 7110 | 19110 |
| Base 11 | 6511 | 16411 |
| Base 12 | 5b12 | 13b12 |
| Base 13 | 5613 | 11913 |
| Base 14 | 5114 | d914 |
| Base 15 | 4b15 | cb15 |
| Base 16 | 4716 | bf16 |