Compare 1961 vs 1971
| Property | 1961 | 1971 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 2 |
| Total factors | 2 | 4 |
| Prime factorization | 371 × 531 | 33 × 731 |
| Prime factorization | 37 × 53 | 3 × 3 × 3 × 73 |
| Divisors count | 4 | 8 |
| Divisors | 1, 37, 53, 1961 | 1, 3, 9, 27, 73, 219, 657, 1971 |
| Number of properties | 1 | 0 |
| Semiprimes | 566th | |
| Roman numberals | MCMLXI | MCMLXXI |
| Base 2 | 111101010012 | 111101100112 |
| Base 3 | 22001223 | 22010003 |
| Base 4 | 1322214 | 1323034 |
| Base 5 | 303215 | 303415 |
| Base 6 | 130256 | 130436 |
| Base 7 | 55017 | 55147 |
| Base 8 | 36518 | 36638 |
| Base 9 | 26189 | 26309 |
| Base 10 | 196110 | 197110 |
| Base 11 | 152311 | 153211 |
| Base 12 | 117512 | 118312 |
| Base 13 | b7b13 | b8813 |
| Base 14 | a0114 | a0b14 |
| Base 15 | 8ab15 | 8b615 |
| Base 16 | 7a916 | 7b316 |