Compare 821 vs 941
| Property | 821 | 941 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 8211 | 9411 |
| Prime factorization | 821 | 941 |
| Divisors count | 2 | 2 |
| Divisors | 1, 821 | 1, 941 |
| Number of properties | 10 | 9 |
| Additive primes | 75th | |
| Chen primes | 97th | 109th |
| Cousin primes (2nd member) | 40th | |
| Emirps | 31st | |
| Good primes | 40th | |
| Isolated primes | 91st | |
| Long primes | 50th | 56th |
| Primes | 142nd | 160th |
| Prime quadruplets (1st member) | 5th | |
| Prime triplets (1st member) | 25th | |
| Pythagorean primes | 69th | 77th |
| Sexy primes (1st member) | 64th | 70th |
| Sexy prime triplets (1st member) | 27th | |
| Twin primes (1st member) | 32nd | |
| Roman numberals | DCCCXXI | CMXLI |
| Base 2 | 11001101012 | 11101011012 |
| Base 3 | 10101023 | 10212123 |
| Base 4 | 303114 | 322314 |
| Base 5 | 112415 | 122315 |
| Base 6 | 34456 | 42056 |
| Base 7 | 22527 | 25137 |
| Base 8 | 14658 | 16558 |
| Base 9 | 11129 | 12559 |
| Base 10 | 82110 | 94110 |
| Base 11 | 68711 | 78611 |
| Base 12 | 58512 | 66512 |
| Base 13 | 4b213 | 57513 |
| Base 14 | 42914 | 4b314 |
| Base 15 | 39b15 | 42b15 |
| Base 16 | 33516 | 3ad16 |