Compare 1961 vs 1977
| Property | 1961 | 1977 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 371 × 531 | 31 × 6591 |
| Prime factorization | 37 × 53 | 3 × 659 |
| Divisors count | 4 | 4 |
| Divisors | 1, 37, 53, 1961 | 1, 3, 659, 1977 |
| Number of properties | 1 | 1 |
| Semiprimes | 566th | 571st |
| Roman numberals | MCMLXI | MCMLXXVII |
| Base 2 | 111101010012 | 111101110012 |
| Base 3 | 22001223 | 22010203 |
| Base 4 | 1322214 | 1323214 |
| Base 5 | 303215 | 304025 |
| Base 6 | 130256 | 130536 |
| Base 7 | 55017 | 55237 |
| Base 8 | 36518 | 36718 |
| Base 9 | 26189 | 26369 |
| Base 10 | 196110 | 197710 |
| Base 11 | 152311 | 153811 |
| Base 12 | 117512 | 118912 |
| Base 13 | b7b13 | b9113 |
| Base 14 | a0114 | a1314 |
| Base 15 | 8ab15 | 8bc15 |
| Base 16 | 7a916 | 7b916 |