Compare 1601 vs 1663
| Property | 1601 | 1663 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 16011 | 16631 |
| Prime factorization | 1601 | 1663 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1601 | 1, 1663 |
| Number of properties | 12 | 11 |
| Chen primes | 160th | |
| Cousin primes (1st member) | 59th | |
| Cousin primes (2nd member) | 57th | |
| Emirps | 78th | |
| Happy primes | 50th | |
| Harmonic primes | 85th | 91st |
| Isolated primes | 153rd | 158th |
| Long primes | 102nd | |
| Lucky primes | 62nd | |
| Primes | 252nd | 261st |
| Prime triplets (1st member) | 43rd | |
| Proth primes | 21st | |
| Pythagorean primes | 120th | |
| Sexy primes (1st member) | 108th | 113th |
| Sexy primes (2nd member) | 112th | |
| Sexy prime quadrupletss (1st member) | 10th | |
| Sexy prime triplets (1st member) | 41st | |
| Sexy prime triplets (2nd member) | 43rd | |
| Sophie germain primes | 54th | |
| Roman numberals | MDCI | MDCLXIII |
| Base 2 | 110010000012 | 110011111112 |
| Base 3 | 20120223 | 20211213 |
| Base 4 | 1210014 | 1213334 |
| Base 5 | 224015 | 231235 |
| Base 6 | 112256 | 114116 |
| Base 7 | 44457 | 45647 |
| Base 8 | 31018 | 31778 |
| Base 9 | 21689 | 22479 |
| Base 10 | 160110 | 166310 |
| Base 11 | 122611 | 128211 |
| Base 12 | b1512 | b6712 |
| Base 13 | 96213 | 9ac13 |
| Base 14 | 82514 | 86b14 |
| Base 15 | 71b15 | 75d15 |
| Base 16 | 64116 | 67f16 |