Compare 99991 vs 99998
| Property | 99991 | 99998 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 999911 | 21 × 499991 |
| Prime factorization | 99991 | 2 × 49999 |
| Divisors count | 2 | 4 |
| Divisors | 1, 99991 | 1, 2, 49999, 99998 |
| Number of properties | 5 | 1 |
| Additive primes | 3883rd | |
| Chen primes | 4234th | |
| Harmonic primes | 3622nd | |
| Primes | 9592nd | |
| Semiprimes | 23378th | |
| Twin primes (2nd member) | 1224th | |
| Roman numberals | ||
| Base 2 | 110000110100101112 | 110000110100111102 |
| Base 3 | 120020111013 | 120020111223 |
| Base 4 | 1201221134 | 1201221324 |
| Base 5 | 111444315 | 111444435 |
| Base 6 | 20505316 | 20505426 |
| Base 7 | 5643437 | 5643537 |
| Base 8 | 3032278 | 3032368 |
| Base 9 | 1621419 | 1621489 |
| Base 10 | 9999110 | 9999810 |
| Base 11 | 6914111 | 6914811 |
| Base 12 | 49a4712 | 49a5212 |
| Base 13 | 3668813 | 3669213 |
| Base 14 | 2862314 | 2862a14 |
| Base 15 | 1e96115 | 1e96815 |
| Base 16 | 1869716 | 1869e16 |