Compare 1917 vs 1918
| Property | 1917 | 1918 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 2 | 3 |
| Total factors | 4 | 3 |
| Prime factorization | 33 × 711 | 21 × 71 × 1371 |
| Prime factorization | 3 × 3 × 3 × 71 | 2 × 7 × 137 |
| Divisors count | 8 | 8 |
| Divisors | 1, 3, 9, 27, 71, 213, 639, 1917 | 1, 2, 7, 14, 137, 274, 959, 1918 |
| Number of properties | 0 | 0 |
| Roman numberals | MCMXVII | MCMXVIII |
| Base 2 | 111011111012 | 111011111102 |
| Base 3 | 21220003 | 21220013 |
| Base 4 | 1313314 | 1313324 |
| Base 5 | 301325 | 301335 |
| Base 6 | 125136 | 125146 |
| Base 7 | 54067 | 54107 |
| Base 8 | 35758 | 35768 |
| Base 9 | 25609 | 25619 |
| Base 10 | 191710 | 191810 |
| Base 11 | 149311 | 149411 |
| Base 12 | 113912 | 113a12 |
| Base 13 | b4613 | b4713 |
| Base 14 | 9ad14 | 9b014 |
| Base 15 | 87c15 | 87d15 |
| Base 16 | 77d16 | 77e16 |