Compare 73 vs 131
| Property | 73 | 131 | 
|---|---|---|
| Type | prime | prime | 
| Unique factors | 1 | 1 | 
| Total factors | 1 | 1 | 
| Prime factorization | 731 | 1311 | 
| Prime factorization | 73 | 131 | 
| Divisors count | 2 | 2 | 
| Divisors | 1, 73 | 1, 131 | 
| Number of properties | 17 | 12 | 
| Additive primes | 17th | |
| Chen primes | 26th | |
| Cousin primes (2nd member) | 12th | |
| Emirps | 6th | |
| Harmonic primes | 7th | |
| Isolated primes | 13th | |
| Left-truncatable primes | 13th | |
| Long primes | 12th | |
| Lucky primes | 8th | |
| Multiplicative primes | 10th | |
| Palindromic primes | 7th | |
| Pierpont primes | 9th | |
| Primes | 21st | 32nd | 
| Prime triplets (3rd member) | 8th | |
| Pythagorean primes | 9th | |
| Right-truncatable primes | 12th | |
| Sexy primes (1st member) | 14th | 20th | 
| 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 | 18th | 23rd | 
| Sophie germain primes | 12th | |
| Twin primes (2nd member) | 8th | |
| Two-sided primes | 8th | |
| Ulam primes | 8th | |
| Roman numberals | LXXIII | CXXXI | 
| Base 2 | 10010012 | 100000112 | 
| Base 3 | 22013 | 112123 | 
| Base 4 | 10214 | 20034 | 
| Base 5 | 2435 | 10115 | 
| Base 6 | 2016 | 3356 | 
| Base 7 | 1337 | 2457 | 
| Base 8 | 1118 | 2038 | 
| Base 9 | 819 | 1559 | 
| Base 10 | 7310 | 13110 | 
| Base 11 | 6711 | 10a11 | 
| Base 12 | 6112 | ab12 | 
| Base 13 | 5813 | a113 | 
| Base 14 | 5314 | 9514 | 
| Base 15 | 4d15 | 8b15 | 
| Base 16 | 4916 | 8316 |