Compare 673 vs 1721
| Property | 673 | 1721 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6731 | 17211 |
| Prime factorization | 673 | 1721 |
| Divisors count | 2 | 2 |
| Divisors | 1, 673 | 1, 1721 |
| Number of properties | 9 | 6 |
| Additive primes | 143rd | |
| Chen primes | 169th | |
| Cousin primes (1st member) | 30th | |
| Happy primes | 27th | |
| Isolated primes | 63rd | |
| Left-truncatable primes | 41st | |
| Lucky primes | 34th | |
| Primes | 122nd | 268th |
| Proth primes | 15th | |
| Pythagorean primes | 58th | 130th |
| Twin primes (1st member) | 55th | |
| Ulam primes | 14th | 25th |
| Roman numberals | DCLXXIII | MDCCXXI |
| Base 2 | 10101000012 | 110101110012 |
| Base 3 | 2202213 | 21002023 |
| Base 4 | 222014 | 1223214 |
| Base 5 | 101435 | 233415 |
| Base 6 | 30416 | 115456 |
| Base 7 | 16517 | 50067 |
| Base 8 | 12418 | 32718 |
| Base 9 | 8279 | 23229 |
| Base 10 | 67310 | 172110 |
| Base 11 | 56211 | 132511 |
| Base 12 | 48112 | bb512 |
| Base 13 | 3ca13 | a2513 |
| Base 14 | 36114 | 8ad14 |
| Base 15 | 2ed15 | 79b15 |
| Base 16 | 2a116 | 6b916 |