Compare 1535 vs 1543
| Property | 1535 | 1543 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 51 × 3071 | 15431 |
| Prime factorization | 5 × 307 | 1543 |
| Divisors count | 4 | 2 |
| Divisors | 1, 5, 307, 1535 | 1, 1543 |
| Number of properties | 1 | 7 |
| Additive primes | 132nd | |
| Good primes | 55th | |
| Isolated primes | 144th | |
| Long primes | 92nd | |
| Lucky primes | 58th | |
| Primes | 243rd | |
| Semiprimes | 447th | |
| Sexy primes (1st member) | 106th | |
| Roman numberals | MDXXXV | MDXLIII |
| Base 2 | 101111111112 | 110000001112 |
| Base 3 | 20022123 | 20100113 |
| Base 4 | 1133334 | 1200134 |
| Base 5 | 221205 | 221335 |
| Base 6 | 110356 | 110516 |
| Base 7 | 43227 | 43337 |
| Base 8 | 27778 | 30078 |
| Base 9 | 20859 | 21049 |
| Base 10 | 153510 | 154310 |
| Base 11 | 117611 | 118311 |
| Base 12 | a7b12 | a8712 |
| Base 13 | 91113 | 91913 |
| Base 14 | 7b914 | 7c314 |
| Base 15 | 6c515 | 6cd15 |
| Base 16 | 5ff16 | 60716 |