Compare 823 vs 881
| Property | 823 | 881 | 
|---|---|---|
| Type | prime | prime | 
| Unique factors | 1 | 1 | 
| Total factors | 1 | 1 | 
| Prime factorization | 8231 | 8811 | 
| Prime factorization | 823 | 881 | 
| Divisors count | 2 | 2 | 
| Divisors | 1, 823 | 1, 881 | 
| Number of properties | 11 | 12 | 
| Additive primes | 76th | 80th | 
| Chen primes | 104th | |
| Cousin primes (1st member) | 34th | |
| Cousin primes (2nd member) | 37th | |
| Happy primes | 33rd | |
| Harmonic primes | 57th | |
| Left-truncatable primes | 46th | |
| Long primes | 51st | |
| Lucky primes | 39th | |
| Primes | 143rd | 152nd | 
| Prime quadruplets (2nd member) | 5th | |
| Prime triplets (1st member) | 26th | 30th | 
| Prime triplets (2nd member) | 25th | 29th | 
| Pythagorean primes | 74th | |
| Quartan primes | 7th | |
| Sexy primes (1st member) | 65th | 69th | 
| Twin primes (1st member) | 35th | |
| Twin primes (2nd member) | 32nd | |
| Roman numberals | DCCCXXIII | DCCCLXXXI | 
| Base 2 | 11001101112 | 11011100012 | 
| Base 3 | 10101113 | 10121223 | 
| Base 4 | 303134 | 313014 | 
| Base 5 | 112435 | 120115 | 
| Base 6 | 34516 | 40256 | 
| Base 7 | 22547 | 23667 | 
| Base 8 | 14678 | 15618 | 
| Base 9 | 11149 | 11789 | 
| Base 10 | 82310 | 88110 | 
| Base 11 | 68911 | 73111 | 
| Base 12 | 58712 | 61512 | 
| Base 13 | 4b413 | 52a13 | 
| Base 14 | 42b14 | 46d14 | 
| Base 15 | 39d15 | 3db15 | 
| Base 16 | 33716 | 37116 |