Compare 853 vs 1399
| Property | 853 | 1399 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 8531 | 13991 |
| Prime factorization | 853 | 1399 |
| Divisors count | 2 | 2 |
| Divisors | 1, 853 | 1, 1399 |
| Number of properties | 9 | 6 |
| Chen primes | 145th | |
| Cousin primes (1st member) | 35th | |
| Emirps | 65th | |
| Good primes | 41st | 52nd |
| Harmonic primes | 55th | 76th |
| Isolated primes | 82nd | 131st |
| Left-truncatable primes | 47th | |
| Primes | 147th | 222nd |
| Prime triplets (1st member) | 27th | |
| Pythagorean primes | 71st | |
| Sexy primes (1st member) | 66th | |
| Roman numberals | DCCCLIII | MCCCXCIX |
| Base 2 | 11010101012 | 101011101112 |
| Base 3 | 10111213 | 12202113 |
| Base 4 | 311114 | 1113134 |
| Base 5 | 114035 | 210445 |
| Base 6 | 35416 | 102516 |
| Base 7 | 23267 | 40367 |
| Base 8 | 15258 | 25678 |
| Base 9 | 11479 | 18249 |
| Base 10 | 85310 | 139910 |
| Base 11 | 70611 | 106211 |
| Base 12 | 5b112 | 98712 |
| Base 13 | 50813 | 83813 |
| Base 14 | 44d14 | 71d14 |
| Base 15 | 3bd15 | 63415 |
| Base 16 | 35516 | 57716 |