Compare 1991 vs 1996
| Property | 1991 | 1996 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 2 |
| Total factors | 2 | 3 |
| Prime factorization | 111 × 1811 | 22 × 4991 |
| Prime factorization | 11 × 181 | 2 × 2 × 499 |
| Divisors count | 4 | 6 |
| Divisors | 1, 11, 181, 1991 | 1, 2, 4, 499, 998, 1996 |
| Number of properties | 1 | 0 |
| Semiprimes | 576th | |
| Roman numberals | MCMXCI | MCMXCVI |
| Base 2 | 111110001112 | 111110011002 |
| Base 3 | 22012023 | 22012213 |
| Base 4 | 1330134 | 1330304 |
| Base 5 | 304315 | 304415 |
| Base 6 | 131156 | 131246 |
| Base 7 | 55437 | 55517 |
| Base 8 | 37078 | 37148 |
| Base 9 | 26529 | 26579 |
| Base 10 | 199110 | 199610 |
| Base 11 | 155011 | 155511 |
| Base 12 | 119b12 | 11a412 |
| Base 13 | ba213 | ba713 |
| Base 14 | a2314 | a2814 |
| Base 15 | 8cb15 | 8d115 |
| Base 16 | 7c716 | 7cc16 |