Compare 1277 vs 1721
| Property | 1277 | 1721 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 12771 | 17211 |
| Prime factorization | 1277 | 1721 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1277 | 1, 1721 |
| Number of properties | 10 | 6 |
| Additive primes | 111th | 143rd |
| Chen primes | 134th | 169th |
| Good primes | 50th | |
| Happy primes | 41st | |
| Primes | 206th | 268th |
| Prime triplets (1st member) | 33rd | |
| Pythagorean primes | 102nd | 130th |
| Sexy primes (1st member) | 89th | |
| Sexy prime triplets (1st member) | 34th | |
| Twin primes (1st member) | 43rd | 55th |
| Ulam primes | 25th | |
| Roman numberals | MCCLXXVII | MDCCXXI |
| Base 2 | 100111111012 | 110101110012 |
| Base 3 | 12020223 | 21002023 |
| Base 4 | 1033314 | 1223214 |
| Base 5 | 201025 | 233415 |
| Base 6 | 55256 | 115456 |
| Base 7 | 35037 | 50067 |
| Base 8 | 23758 | 32718 |
| Base 9 | 16689 | 23229 |
| Base 10 | 127710 | 172110 |
| Base 11 | a6111 | 132511 |
| Base 12 | 8a512 | bb512 |
| Base 13 | 77313 | a2513 |
| Base 14 | 67314 | 8ad14 |
| Base 15 | 5a215 | 79b15 |
| Base 16 | 4fd16 | 6b916 |