Compare 261959 vs 261961
| Property | 261959 | 261961 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 2619591 | 71 × 374231 |
| Prime factorization | 261959 | 7 × 37423 |
| Divisors count | 2 | 4 |
| Divisors | 1, 261959 | 1, 7, 37423, 261961 |
| Number of properties | 5 | 1 |
| Chen primes | 9492nd | |
| Good primes | 1196th | |
| Harmonic primes | 8561st | |
| Isolated primes | 17632nd | |
| Primes | 22983rd | |
| Semiprimes | 58511th | |
| Roman numberals | ||
| Base 2 | 1111111111010001112 | 1111111111010010012 |
| Base 3 | 1110221000123 | 1110221000213 |
| Base 4 | 3333310134 | 3333310214 |
| Base 5 | 313403145 | 313403215 |
| Base 6 | 53404356 | 53404416 |
| Base 7 | 21405057 | 21405107 |
| Base 8 | 7775078 | 7775118 |
| Base 9 | 4383059 | 4383079 |
| Base 10 | 26195910 | 26196110 |
| Base 11 | 1698a511 | 1698a711 |
| Base 12 | 10771b12 | 10772112 |
| Base 13 | 9230913 | 9230b13 |
| Base 14 | 6b67514 | 6b67714 |
| Base 15 | 5293e15 | 5294115 |
| Base 16 | 3ff4716 | 3ff4916 |