Compare 66991 vs 66997
| Property | 66991 | 66997 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 3 |
| Prime factorization | 311 × 21611 | 71 × 171 × 5631 |
| Prime factorization | 31 × 2161 | 7 × 17 × 563 |
| Divisors count | 4 | 8 |
| Divisors | 1, 31, 2161, 66991 | 1, 7, 17, 119, 563, 3941, 9571, 66997 |
| Number of properties | 1 | 0 |
| Semiprimes | 15995th | |
| Roman numberals | ||
| Base 2 | 100000101101011112 | 100000101101101012 |
| Base 3 | 101012200113 | 101012201013 |
| Base 4 | 1001122334 | 1001123114 |
| Base 5 | 41204315 | 41204425 |
| Base 6 | 12340516 | 12341016 |
| Base 7 | 3662117 | 3662207 |
| Base 8 | 2026578 | 2026658 |
| Base 9 | 1118049 | 1118119 |
| Base 10 | 6699110 | 6699710 |
| Base 11 | 4637111 | 4637711 |
| Base 12 | 3292712 | 3293112 |
| Base 13 | 2465213 | 2465813 |
| Base 14 | 1a5b114 | 1a5b714 |
| Base 15 | 14cb115 | 14cb715 |
| Base 16 | 105af16 | 105b516 |