Compare 1961 vs 1965
| Property | 1961 | 1965 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 3 |
| Prime factorization | 371 × 531 | 31 × 51 × 1311 |
| Prime factorization | 37 × 53 | 3 × 5 × 131 |
| Divisors count | 4 | 8 |
| Divisors | 1, 37, 53, 1961 | 1, 3, 5, 15, 131, 393, 655, 1965 |
| Number of properties | 1 | 0 |
| Semiprimes | 566th | |
| Roman numberals | MCMLXI | MCMLXV |
| Base 2 | 111101010012 | 111101011012 |
| Base 3 | 22001223 | 22002103 |
| Base 4 | 1322214 | 1322314 |
| Base 5 | 303215 | 303305 |
| Base 6 | 130256 | 130336 |
| Base 7 | 55017 | 55057 |
| Base 8 | 36518 | 36558 |
| Base 9 | 26189 | 26239 |
| Base 10 | 196110 | 196510 |
| Base 11 | 152311 | 152711 |
| Base 12 | 117512 | 117912 |
| Base 13 | b7b13 | b8213 |
| Base 14 | a0114 | a0514 |
| Base 15 | 8ab15 | 8b015 |
| Base 16 | 7a916 | 7ad16 |