Compare 1915 vs 1943
| Property | 1915 | 1943 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 51 × 3831 | 291 × 671 |
| Prime factorization | 5 × 383 | 29 × 67 |
| Divisors count | 4 | 4 |
| Divisors | 1, 5, 383, 1915 | 1, 29, 67, 1943 |
| Number of properties | 1 | 1 |
| Semiprimes | 550th | 561st |
| Roman numberals | MCMXV | MCMXLIII |
| Base 2 | 111011110112 | 111100101112 |
| Base 3 | 21212213 | 21222223 |
| Base 4 | 1313234 | 1321134 |
| Base 5 | 301305 | 302335 |
| Base 6 | 125116 | 125556 |
| Base 7 | 54047 | 54447 |
| Base 8 | 35738 | 36278 |
| Base 9 | 25579 | 25889 |
| Base 10 | 191510 | 194310 |
| Base 11 | 149111 | 150711 |
| Base 12 | 113712 | 115b12 |
| Base 13 | b4413 | b6613 |
| Base 14 | 9ab14 | 9cb14 |
| Base 15 | 87a15 | 89815 |
| Base 16 | 77b16 | 79716 |