Compare 853 vs 997
| Property | 853 | 997 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 8531 | 9971 |
| Prime factorization | 853 | 997 |
| Divisors count | 2 | 2 |
| Divisors | 1, 853 | 1, 997 |
| Number of properties | 9 | 6 |
| Cousin primes (1st member) | 35th | |
| Good primes | 41st | |
| Harmonic primes | 55th | |
| Isolated primes | 82nd | 99th |
| Left-truncatable primes | 47th | 54th |
| Lucky primes | 43rd | |
| Primes | 147th | 168th |
| Prime triplets (1st member) | 27th | |
| Pythagorean primes | 71st | 80th |
| Sexy primes (1st member) | 66th | |
| Sexy primes (2nd member) | 74th | |
| Roman numberals | DCCCLIII | CMXCVII |
| Base 2 | 11010101012 | 11111001012 |
| Base 3 | 10111213 | 11002213 |
| Base 4 | 311114 | 332114 |
| Base 5 | 114035 | 124425 |
| Base 6 | 35416 | 43416 |
| Base 7 | 23267 | 26237 |
| Base 8 | 15258 | 17458 |
| Base 9 | 11479 | 13279 |
| Base 10 | 85310 | 99710 |
| Base 11 | 70611 | 82711 |
| Base 12 | 5b112 | 6b112 |
| Base 13 | 50813 | 5b913 |
| Base 14 | 44d14 | 51314 |
| Base 15 | 3bd15 | 46715 |
| Base 16 | 35516 | 3e516 |