Compare 1997 vs 2017
| Property | 1997 | 2017 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 19971 | 20171 |
| Prime factorization | 1997 | 2017 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1997 | 1, 2017 |
| Number of properties | 10 | 7 |
| Chen primes | 185th | 187th |
| Cousin primes (2nd member) | 64th | |
| Good primes | 64th | |
| Isolated primes | 185th | |
| Left-truncatable primes | 62nd | |
| Long primes | 117th | |
| Primes | 302nd | 306th |
| Prime triplets (1st member) | 50th | |
| Prime triplets (2nd member) | 49th | |
| Pythagorean primes | 147th | 148th |
| Sexy primes (1st member) | 129th | |
| Sexy primes (2nd member) | 130th | |
| Solinas primes | 54th | |
| Twin primes (1st member) | 61st | |
| Roman numberals | MCMXCVII | MMXVII |
| Base 2 | 111110011012 | 111111000012 |
| Base 3 | 22012223 | 22022013 |
| Base 4 | 1330314 | 1332014 |
| Base 5 | 304425 | 310325 |
| Base 6 | 131256 | 132016 |
| Base 7 | 55527 | 56117 |
| Base 8 | 37158 | 37418 |
| Base 9 | 26589 | 26819 |
| Base 10 | 199710 | 201710 |
| Base 11 | 155611 | 157411 |
| Base 12 | 11a512 | 120112 |
| Base 13 | ba813 | bc213 |
| Base 14 | a2914 | a4114 |
| Base 15 | 8d215 | 8e715 |
| Base 16 | 7cd16 | 7e116 |