Compare 1321 vs 1543
| Property | 1321 | 1543 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 13211 | 15431 |
| Prime factorization | 1321 | 1543 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1321 | 1, 1543 |
| Number of properties | 7 | 7 |
| Additive primes | 118th | 132nd |
| Emirps | 63rd | |
| Good primes | 55th | |
| Harmonic primes | 74th | |
| Isolated primes | 144th | |
| Long primes | 92nd | |
| Lucky primes | 58th | |
| Primes | 216th | 243rd |
| Pythagorean primes | 106th | |
| Sexy primes (1st member) | 94th | 106th |
| Twin primes (2nd member) | 46th | |
| Roman numberals | MCCCXXI | MDXLIII |
| Base 2 | 101001010012 | 110000001112 |
| Base 3 | 12102213 | 20100113 |
| Base 4 | 1102214 | 1200134 |
| Base 5 | 202415 | 221335 |
| Base 6 | 100416 | 110516 |
| Base 7 | 35657 | 43337 |
| Base 8 | 24518 | 30078 |
| Base 9 | 17279 | 21049 |
| Base 10 | 132110 | 154310 |
| Base 11 | aa111 | 118311 |
| Base 12 | 92112 | a8712 |
| Base 13 | 7a813 | 91913 |
| Base 14 | 6a514 | 7c314 |
| Base 15 | 5d115 | 6cd15 |
| Base 16 | 52916 | 60716 |