Compare 61991 vs 61997
| Property | 61991 | 61997 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 619911 | 131 × 191 × 2511 |
| Prime factorization | 61991 | 13 × 19 × 251 |
| Divisors count | 2 | 8 |
| Divisors | 1, 61991 | 1, 13, 19, 247, 251, 3263, 4769, 61997 |
| Number of properties | 5 | 0 |
| Chen primes | 2860th | |
| Cousin primes (2nd member) | 826th | |
| Isolated primes | 4579th | |
| Primes | 6232nd | |
| Sophie germain primes | 796th | |
| Roman numberals | ||
| Base 2 | 11110010001001112 | 11110010001011012 |
| Base 3 | 100110002223 | 100110010123 |
| Base 4 | 330202134 | 330202314 |
| Base 5 | 34404315 | 34404425 |
| Base 6 | 11545556 | 11550056 |
| Base 7 | 3455067 | 3455157 |
| Base 8 | 1710478 | 1710558 |
| Base 9 | 1040289 | 1040359 |
| Base 10 | 6199110 | 6199710 |
| Base 11 | 4263611 | 4264111 |
| Base 12 | 2ba5b12 | 2ba6512 |
| Base 13 | 222a713 | 222b013 |
| Base 14 | 1883d14 | 1884514 |
| Base 15 | 1357b15 | 1358215 |
| Base 16 | f22716 | f22d16 |