Compare 1918 vs 1923
| Property | 1918 | 1923 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 21 × 71 × 1371 | 31 × 6411 |
| Prime factorization | 2 × 7 × 137 | 3 × 641 |
| Divisors count | 8 | 4 |
| Divisors | 1, 2, 7, 14, 137, 274, 959, 1918 | 1, 3, 641, 1923 |
| Number of properties | 0 | 1 |
| Semiprimes | 553rd | |
| Roman numberals | MCMXVIII | MCMXXIII |
| Base 2 | 111011111102 | 111100000112 |
| Base 3 | 21220013 | 21220203 |
| Base 4 | 1313324 | 1320034 |
| Base 5 | 301335 | 301435 |
| Base 6 | 125146 | 125236 |
| Base 7 | 54107 | 54157 |
| Base 8 | 35768 | 36038 |
| Base 9 | 25619 | 25669 |
| Base 10 | 191810 | 192310 |
| Base 11 | 149411 | 149911 |
| Base 12 | 113a12 | 114312 |
| Base 13 | b4713 | b4c13 |
| Base 14 | 9b014 | 9b514 |
| Base 15 | 87d15 | 88315 |
| Base 16 | 77e16 | 78316 |