Compare 1579 vs 1585
| Property | 1579 | 1585 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 15791 | 51 × 3171 |
| Prime factorization | 1579 | 5 × 317 |
| Divisors count | 2 | 4 |
| Divisors | 1, 1579 | 1, 5, 317, 1585 |
| Number of properties | 6 | 1 |
| Cousin primes (1st member) | 56th | |
| Harmonic primes | 83rd | |
| Isolated primes | 150th | |
| Long primes | 97th | |
| Lucky primes | 60th | |
| Primes | 249th | |
| Semiprimes | 459th | |
| Roman numberals | MDLXXIX | MDLXXXV |
| Base 2 | 110001010112 | 110001100012 |
| Base 3 | 20111113 | 20112013 |
| Base 4 | 1202234 | 1203014 |
| Base 5 | 223045 | 223205 |
| Base 6 | 111516 | 112016 |
| Base 7 | 44147 | 44237 |
| Base 8 | 30538 | 30618 |
| Base 9 | 21449 | 21519 |
| Base 10 | 157910 | 158510 |
| Base 11 | 120611 | 121111 |
| Base 12 | ab712 | b0112 |
| Base 13 | 94613 | 94c13 |
| Base 14 | 80b14 | 81314 |
| Base 15 | 70415 | 70a15 |
| Base 16 | 62b16 | 63116 |