Compare 1543 vs 1861
| Property | 1543 | 1861 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 15431 | 18611 |
| Prime factorization | 1543 | 1861 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1543 | 1, 1861 |
| Number of properties | 7 | 10 |
| Additive primes | 132nd | |
| Centered square primes | 15th | |
| Good primes | 55th | 58th |
| Harmonic primes | 103rd | |
| Isolated primes | 144th | 173rd |
| Long primes | 92nd | 112th |
| Lucky primes | 58th | |
| Primes | 243rd | 284th |
| Pythagorean primes | 137th | |
| Sexy primes (1st member) | 106th | 120th |
| Sexy prime quadrupletss (1st member) | 12th | |
| Sexy prime triplets (1st member) | 47th | |
| Roman numberals | MDXLIII | MDCCCLXI |
| Base 2 | 110000001112 | 111010001012 |
| Base 3 | 20100113 | 21122213 |
| Base 4 | 1200134 | 1310114 |
| Base 5 | 221335 | 244215 |
| Base 6 | 110516 | 123416 |
| Base 7 | 43337 | 52667 |
| Base 8 | 30078 | 35058 |
| Base 9 | 21049 | 24879 |
| Base 10 | 154310 | 186110 |
| Base 11 | 118311 | 144211 |
| Base 12 | a8712 | 10b112 |
| Base 13 | 91913 | b0213 |
| Base 14 | 7c314 | 96d14 |
| Base 15 | 6cd15 | 84115 |
| Base 16 | 60716 | 74516 |