Compare 6991 vs 6993
| Property | 6991 | 6993 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 5 |
| Prime factorization | 69911 | 33 × 71 × 371 |
| Prime factorization | 6991 | 3 × 3 × 3 × 7 × 37 |
| Divisors count | 2 | 16 |
| Divisors | 1, 6991 | 1, 3, 7, 9, 21, 27, 37, 63, 111, 189, 259, 333, 777, 999, 2331, 6993 |
| Number of properties | 3 | 0 |
| Isolated primes | 576th | |
| Primes | 899th | |
| Sexy primes (1st member) | 317th | |
| Roman numberals | ||
| Base 2 | 11011010011112 | 11011010100012 |
| Base 3 | 1001202213 | 1001210003 |
| Base 4 | 12310334 | 12311014 |
| Base 5 | 2104315 | 2104335 |
| Base 6 | 522116 | 522136 |
| Base 7 | 262457 | 262507 |
| Base 8 | 155178 | 155218 |
| Base 9 | 105279 | 105309 |
| Base 10 | 699110 | 699310 |
| Base 11 | 528611 | 528811 |
| Base 12 | 406712 | 406912 |
| Base 13 | 324a13 | 324c13 |
| Base 14 | 279514 | 279714 |
| Base 15 | 211115 | 211315 |
| Base 16 | 1b4f16 | 1b5116 |