Compare 6987 vs 6991
| Property | 6987 | 6991 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 171 × 1371 | 69911 |
| Prime factorization | 3 × 17 × 137 | 6991 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 17, 51, 137, 411, 2329, 6987 | 1, 6991 |
| Number of properties | 0 | 3 |
| Isolated primes | 576th | |
| Primes | 899th | |
| Sexy primes (1st member) | 317th | |
| Roman numberals | ||
| Base 2 | 11011010010112 | 11011010011112 |
| Base 3 | 1001202103 | 1001202213 |
| Base 4 | 12310234 | 12310334 |
| Base 5 | 2104225 | 2104315 |
| Base 6 | 522036 | 522116 |
| Base 7 | 262417 | 262457 |
| Base 8 | 155138 | 155178 |
| Base 9 | 105239 | 105279 |
| Base 10 | 698710 | 699110 |
| Base 11 | 528211 | 528611 |
| Base 12 | 406312 | 406712 |
| Base 13 | 324613 | 324a13 |
| Base 14 | 279114 | 279514 |
| Base 15 | 210c15 | 211115 |
| Base 16 | 1b4b16 | 1b4f16 |