Compare 1399 vs 1601
| Property | 1399 | 1601 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 13991 | 16011 |
| Prime factorization | 1399 | 1601 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1399 | 1, 1601 |
| Number of properties | 6 | 12 |
| Chen primes | 145th | 160th |
| Cousin primes (2nd member) | 57th | |
| Emirps | 65th | 78th |
| Good primes | 52nd | |
| Harmonic primes | 76th | 85th |
| Isolated primes | 131st | 153rd |
| Primes | 222nd | 252nd |
| Proth primes | 21st | |
| Pythagorean primes | 120th | |
| Sexy primes (1st member) | 108th | |
| Sexy prime quadrupletss (1st member) | 10th | |
| Sexy prime triplets (1st member) | 41st | |
| Sophie germain primes | 54th | |
| Roman numberals | MCCCXCIX | MDCI |
| Base 2 | 101011101112 | 110010000012 |
| Base 3 | 12202113 | 20120223 |
| Base 4 | 1113134 | 1210014 |
| Base 5 | 210445 | 224015 |
| Base 6 | 102516 | 112256 |
| Base 7 | 40367 | 44457 |
| Base 8 | 25678 | 31018 |
| Base 9 | 18249 | 21689 |
| Base 10 | 139910 | 160110 |
| Base 11 | 106211 | 122611 |
| Base 12 | 98712 | b1512 |
| Base 13 | 83813 | 96213 |
| Base 14 | 71d14 | 82514 |
| Base 15 | 63415 | 71b15 |
| Base 16 | 57716 | 64116 |