Compare 521 vs 769
| Property | 521 | 769 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 5211 | 7691 |
| Prime factorization | 521 | 769 |
| Divisors count | 2 | 2 |
| Divisors | 1, 521 | 1, 769 |
| Number of properties | 6 | 13 |
| Chen primes | 70th | 92nd |
| Cousin primes (1st member) | 33rd | |
| Cuban primes 2 | 5th | |
| Emirps | 28th | |
| Harmonic primes | 53rd | |
| Isolated primes | 77th | |
| Lucas primes | 8th | |
| Lucky primes | 37th | |
| Pierpont primes | 18th | |
| Primes | 98th | 136th |
| Proth primes | 16th | |
| Pythagorean primes | 46th | 65th |
| Solinas primes | 39th | 42nd |
| Thabit primes of the 2nd kind | 5th | |
| Twin primes (1st member) | 25th | |
| Roman numberals | DXXI | DCCLXIX |
| Base 2 | 10000010012 | 11000000012 |
| Base 3 | 2010223 | 10011113 |
| Base 4 | 200214 | 300014 |
| Base 5 | 40415 | 110345 |
| Base 6 | 22256 | 33216 |
| Base 7 | 13437 | 21467 |
| Base 8 | 10118 | 14018 |
| Base 9 | 6389 | 10449 |
| Base 10 | 52110 | 76910 |
| Base 11 | 43411 | 63a11 |
| Base 12 | 37512 | 54112 |
| Base 13 | 31113 | 47213 |
| Base 14 | 29314 | 3cd14 |
| Base 15 | 24b15 | 36415 |
| Base 16 | 20916 | 30116 |