Compare 1943 vs 1981
| Property | 1943 | 1981 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 291 × 671 | 71 × 2831 |
| Prime factorization | 29 × 67 | 7 × 283 |
| Divisors count | 4 | 4 |
| Divisors | 1, 29, 67, 1943 | 1, 7, 283, 1981 |
| Number of properties | 1 | 1 |
| Semiprimes | 561st | 572nd |
| Roman numberals | MCMXLIII | MCMLXXXI |
| Base 2 | 111100101112 | 111101111012 |
| Base 3 | 21222223 | 22011013 |
| Base 4 | 1321134 | 1323314 |
| Base 5 | 302335 | 304115 |
| Base 6 | 125556 | 131016 |
| Base 7 | 54447 | 55307 |
| Base 8 | 36278 | 36758 |
| Base 9 | 25889 | 26419 |
| Base 10 | 194310 | 198110 |
| Base 11 | 150711 | 154111 |
| Base 12 | 115b12 | 119112 |
| Base 13 | b6613 | b9513 |
| Base 14 | 9cb14 | a1714 |
| Base 15 | 89815 | 8c115 |
| Base 16 | 79716 | 7bd16 |