Compare 1543 vs 1545
| Property | 1543 | 1545 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 15431 | 31 × 51 × 1031 |
| Prime factorization | 1543 | 3 × 5 × 103 |
| Divisors count | 2 | 8 |
| Divisors | 1, 1543 | 1, 3, 5, 15, 103, 309, 515, 1545 |
| Number of properties | 7 | 0 |
| Additive primes | 132nd | |
| Good primes | 55th | |
| Isolated primes | 144th | |
| Long primes | 92nd | |
| Lucky primes | 58th | |
| Primes | 243rd | |
| Sexy primes (1st member) | 106th | |
| Roman numberals | MDXLIII | MDXLV |
| Base 2 | 110000001112 | 110000010012 |
| Base 3 | 20100113 | 20100203 |
| Base 4 | 1200134 | 1200214 |
| Base 5 | 221335 | 221405 |
| Base 6 | 110516 | 110536 |
| Base 7 | 43337 | 43357 |
| Base 8 | 30078 | 30118 |
| Base 9 | 21049 | 21069 |
| Base 10 | 154310 | 154510 |
| Base 11 | 118311 | 118511 |
| Base 12 | a8712 | a8912 |
| Base 13 | 91913 | 91b13 |
| Base 14 | 7c314 | 7c514 |
| Base 15 | 6cd15 | 6d015 |
| Base 16 | 60716 | 60916 |