Compare 2521 vs 9661
| Property | 2521 | 9661 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 25211 | 96611 |
| Prime factorization | 2521 | 9661 |
| Divisors count | 2 | 2 |
| Divisors | 1, 2521 | 1, 9661 |
| Number of properties | 6 | 9 |
| Centered square primes | 18th | 25th |
| Chen primes | 618th | |
| Emirps | 224th | |
| Good primes | 71st | |
| Harmonic primes | 138th | 434th |
| Isolated primes | 226th | 794th |
| Lucky primes | 207th | |
| Primes | 369th | 1193rd |
| Pythagorean primes | 181st | 592nd |
| Super primes | 196th | |
| Roman numberals | MMDXXI | |
| Base 2 | 1001110110012 | 100101101111012 |
| Base 3 | 101101013 | 1110202113 |
| Base 4 | 2131214 | 21123314 |
| Base 5 | 400415 | 3021215 |
| Base 6 | 154016 | 1124216 |
| Base 7 | 102317 | 401117 |
| Base 8 | 47318 | 226758 |
| Base 9 | 34119 | 142249 |
| Base 10 | 252110 | 966110 |
| Base 11 | 199211 | 729311 |
| Base 12 | 156112 | 571112 |
| Base 13 | 11bc13 | 452213 |
| Base 14 | cc114 | 374114 |
| Base 15 | b3115 | 2ce115 |
| Base 16 | 9d916 | 25bd16 |