Compare 1963 vs 1966
| Property | 1963 | 1966 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 131 × 1511 | 21 × 9831 |
| Prime factorization | 13 × 151 | 2 × 983 |
| Divisors count | 4 | 4 |
| Divisors | 1, 13, 151, 1963 | 1, 2, 983, 1966 |
| Number of properties | 1 | 1 |
| Semiprimes | 567th | 568th |
| Roman numberals | MCMLXIII | MCMLXVI |
| Base 2 | 111101010112 | 111101011102 |
| Base 3 | 22002013 | 22002113 |
| Base 4 | 1322234 | 1322324 |
| Base 5 | 303235 | 303315 |
| Base 6 | 130316 | 130346 |
| Base 7 | 55037 | 55067 |
| Base 8 | 36538 | 36568 |
| Base 9 | 26219 | 26249 |
| Base 10 | 196310 | 196610 |
| Base 11 | 152511 | 152811 |
| Base 12 | 117712 | 117a12 |
| Base 13 | b8013 | b8313 |
| Base 14 | a0314 | a0614 |
| Base 15 | 8ad15 | 8b115 |
| Base 16 | 7ab16 | 7ae16 |