Compare 12821 vs 12907
| Property | 12821 | 12907 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 128211 | 129071 |
| Prime factorization | 12821 | 12907 |
| Divisors count | 2 | 2 |
| Divisors | 1, 12821 | 1, 12907 |
| Number of properties | 8 | 7 |
| Additive primes | 743rd | |
| Chen primes | 776th | |
| Cousin primes (1st member) | 247th | |
| Emirps | 361st | |
| Harmonic primes | 547th | 551st |
| Isolated primes | 1047th | |
| Long primes | 594th | |
| Lucky primes | 261st | |
| Palindromic primes | 28th | |
| Primes | 1528th | 1536th |
| Pythagorean primes | 757th | |
| Sophie germain primes | 232nd | |
| Twin primes (1st member) | 245th | |
| Roman numberals | ||
| Base 2 | 110010000101012 | 110010011010112 |
| Base 3 | 1221202123 | 1222010013 |
| Base 4 | 30201114 | 30212234 |
| Base 5 | 4022415 | 4031125 |
| Base 6 | 1352056 | 1354316 |
| Base 7 | 522447 | 524267 |
| Base 8 | 310258 | 311538 |
| Base 9 | 185259 | 186319 |
| Base 10 | 1282110 | 1290710 |
| Base 11 | 96a611 | 977411 |
| Base 12 | 750512 | 757712 |
| Base 13 | 5ab313 | 5b4b13 |
| Base 14 | 495b14 | 49bd14 |
| Base 15 | 3beb15 | 3c5715 |
| Base 16 | 321516 | 326b16 |