Compare 71 vs 73
| Property | 71 | 73 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 711 | 731 |
| Prime factorization | 71 | 73 |
| Divisors count | 2 | 2 |
| Divisors | 1, 71 | 1, 73 |
| Number of properties | 13 | 17 |
| Centered heptagonal primes | 2nd | |
| Chen primes | 18th | |
| Class 1+ primes | 11th | |
| Cousin primes (2nd member) | 7th | |
| Emirps | 5th | 6th |
| Good primes | 10th | |
| Harmonic primes | 7th | |
| Left-truncatable primes | 13th | |
| Lucky primes | 8th | |
| Multiplicative primes | 8th | |
| Pierpont primes | 9th | |
| Pierpont primes of the 2nd kind | 11th | |
| Primes | 20th | 21st |
| Prime triplets (2nd member) | 8th | |
| Prime triplets (3rd member) | 8th | |
| Pythagorean primes | 9th | |
| Right-truncatable primes | 11th | 12th |
| Sexy primes (1st member) | 14th | |
| Sexy primes (2nd member) | 13th | |
| Sexy prime quadrupletss (3rd member) | 4th | |
| Sexy prime triplets (2nd member) | 9th | |
| Sexy prime triplets (3rd member) | 8th | |
| Solinas primes | 17th | 18th |
| Twin primes (1st member) | 8th | |
| Twin primes (2nd member) | 8th | |
| Two-sided primes | 8th | |
| Roman numberals | LXXI | LXXIII |
| Base 2 | 10001112 | 10010012 |
| Base 3 | 21223 | 22013 |
| Base 4 | 10134 | 10214 |
| Base 5 | 2415 | 2435 |
| Base 6 | 1556 | 2016 |
| Base 7 | 1317 | 1337 |
| Base 8 | 1078 | 1118 |
| Base 9 | 789 | 819 |
| Base 10 | 7110 | 7310 |
| Base 11 | 6511 | 6711 |
| Base 12 | 5b12 | 6112 |
| Base 13 | 5613 | 5813 |
| Base 14 | 5114 | 5314 |
| Base 15 | 4b15 | 4d15 |
| Base 16 | 4716 | 4916 |