Compare 2721 vs 2729
| Property | 2721 | 2729 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 31 × 9071 | 27291 |
| Prime factorization | 3 × 907 | 2729 |
| Divisors count | 4 | 2 |
| Divisors | 1, 3, 907, 2721 | 1, 2729 |
| Number of properties | 1 | 4 |
| Chen primes | 238th | |
| Primes | 398th | |
| Pythagorean primes | 194th | |
| Semiprimes | 763rd | |
| Twin primes (1st member) | 78th | |
| Roman numberals | MMDCCXXI | MMDCCXXIX |
| Base 2 | 1010101000012 | 1010101010012 |
| Base 3 | 102012103 | 102020023 |
| Base 4 | 2222014 | 2222214 |
| Base 5 | 413415 | 414045 |
| Base 6 | 203336 | 203456 |
| Base 7 | 106357 | 106467 |
| Base 8 | 52418 | 52518 |
| Base 9 | 36539 | 36629 |
| Base 10 | 272110 | 272910 |
| Base 11 | 205411 | 206111 |
| Base 12 | 16a912 | 16b512 |
| Base 13 | 131413 | 131c13 |
| Base 14 | dc514 | dcd14 |
| Base 15 | c1615 | c1e15 |
| Base 16 | aa116 | aa916 |