Compare 6661 vs 6899
| Property | 6661 | 6899 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 66611 | 68991 |
| Prime factorization | 6661 | 6899 |
| Divisors count | 2 | 2 |
| Divisors | 1, 6661 | 1, 6899 |
| Number of properties | 11 | 9 |
| Additive primes | 428th | |
| Centered decagonal primes | 23rd | |
| Chen primes | 469th | 483rd |
| Happy primes | 147th | 156th |
| Harmonic primes | 312th | 325th |
| Isolated primes | 568th | |
| Long primes | 329th | 344th |
| Lucky primes | 160th | |
| Primes | 859th | 887th |
| Pythagorean primes | 423rd | |
| Safe primes | 90th | |
| Sophie germain primes | 149th | |
| Super primes | 149th | 154th |
| Twin primes (2nd member) | 153rd | |
| Roman numberals | ||
| Base 2 | 11010000001012 | 11010111100112 |
| Base 3 | 1000102013 | 1001101123 |
| Base 4 | 12200114 | 12233034 |
| Base 5 | 2031215 | 2100445 |
| Base 6 | 505016 | 515356 |
| Base 7 | 252647 | 260547 |
| Base 8 | 150058 | 153638 |
| Base 9 | 101219 | 104159 |
| Base 10 | 666110 | 689910 |
| Base 11 | 500611 | 520211 |
| Base 12 | 3a3112 | 3bab12 |
| Base 13 | 305513 | 31a913 |
| Base 14 | 25db14 | 272b14 |
| Base 15 | 1e9115 | 209e15 |
| Base 16 | 1a0516 | 1af316 |