Compare 1381 vs 1579
| Property | 1381 | 1579 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 13811 | 15791 |
| Prime factorization | 1381 | 1579 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1381 | 1, 1579 |
| Number of properties | 7 | 6 |
| Additive primes | 122nd | |
| Chen primes | 144th | |
| Cousin primes (1st member) | 56th | |
| Emirps | 64th | |
| Harmonic primes | 83rd | |
| Isolated primes | 130th | 150th |
| Long primes | 86th | 97th |
| Lucky primes | 60th | |
| Primes | 221st | 249th |
| Pythagorean primes | 109th | |
| Roman numberals | MCCCLXXXI | MDLXXIX |
| Base 2 | 101011001012 | 110001010112 |
| Base 3 | 12200113 | 20111113 |
| Base 4 | 1112114 | 1202234 |
| Base 5 | 210115 | 223045 |
| Base 6 | 102216 | 111516 |
| Base 7 | 40127 | 44147 |
| Base 8 | 25458 | 30538 |
| Base 9 | 18049 | 21449 |
| Base 10 | 138110 | 157910 |
| Base 11 | 104611 | 120611 |
| Base 12 | 97112 | ab712 |
| Base 13 | 82313 | 94613 |
| Base 14 | 70914 | 80b14 |
| Base 15 | 62115 | 70415 |
| Base 16 | 56516 | 62b16 |