Compare 1661 vs 1703
| Property | 1661 | 1703 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 111 × 1511 | 131 × 1311 |
| Prime factorization | 11 × 151 | 13 × 131 |
| Divisors count | 4 | 4 |
| Divisors | 1, 11, 151, 1661 | 1, 13, 131, 1703 |
| Number of properties | 1 | 1 |
| Semiprimes | 479th | 489th |
| Roman numberals | MDCLXI | MDCCIII |
| Base 2 | 110011111012 | 110101001112 |
| Base 3 | 20211123 | 21000023 |
| Base 4 | 1213314 | 1222134 |
| Base 5 | 231215 | 233035 |
| Base 6 | 114056 | 115156 |
| Base 7 | 45627 | 46527 |
| Base 8 | 31758 | 32478 |
| Base 9 | 22459 | 23029 |
| Base 10 | 166110 | 170310 |
| Base 11 | 128011 | 130911 |
| Base 12 | b6512 | b9b12 |
| Base 13 | 9aa13 | a1013 |
| Base 14 | 86914 | 89914 |
| Base 15 | 75b15 | 78815 |
| Base 16 | 67d16 | 6a716 |