Compare 227 vs 821
| Property | 227 | 821 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 2271 | 8211 |
| Prime factorization | 227 | 821 |
| Divisors count | 2 | 2 |
| Divisors | 1, 227 | 1, 821 |
| Number of properties | 11 | 10 |
| Additive primes | 29th | 75th |
| Chen primes | 38th | 97th |
| Cousin primes (2nd member) | 15th | |
| Good primes | 18th | 40th |
| Long primes | 50th | |
| Primes | 49th | 142nd |
| Prime quadruplets (1st member) | 5th | |
| Prime triplets (1st member) | 16th | 25th |
| Prime triplets (2nd member) | 15th | |
| Pythagorean primes | 69th | |
| Safe primes | 11th | |
| Sexy primes (1st member) | 28th | 64th |
| Sexy prime triplets (1st member) | 14th | |
| Twin primes (1st member) | 16th | 32nd |
| Roman numberals | CCXXVII | DCCCXXI |
| Base 2 | 111000112 | 11001101012 |
| Base 3 | 221023 | 10101023 |
| Base 4 | 32034 | 303114 |
| Base 5 | 14025 | 112415 |
| Base 6 | 10156 | 34456 |
| Base 7 | 4437 | 22527 |
| Base 8 | 3438 | 14658 |
| Base 9 | 2729 | 11129 |
| Base 10 | 22710 | 82110 |
| Base 11 | 19711 | 68711 |
| Base 12 | 16b12 | 58512 |
| Base 13 | 14613 | 4b213 |
| Base 14 | 12314 | 42914 |
| Base 15 | 10215 | 39b15 |
| Base 16 | e316 | 33516 |