Compare 7907 vs 8221
| Property | 7907 | 8221 | 
|---|---|---|
| Type | prime | prime | 
| Unique factors | 1 | 1 | 
| Total factors | 1 | 1 | 
| Prime factorization | 79071 | 82211 | 
| Prime factorization | 7907 | 8221 | 
| Divisors count | 2 | 2 | 
| Divisors | 1, 7907 | 1, 8221 | 
| Number of properties | 5 | 7 | 
| Additive primes | 494th | 505th | 
| Chen primes | 538th | 554th | 
| Isolated primes | 652nd | |
| Lucky primes | 187th | |
| Primes | 999th | 1031st | 
| Pythagorean primes | 511th | |
| Sexy primes (2nd member) | 343rd | |
| Super primes | 173rd | |
| Twin primes (2nd member) | 178th | |
| Roman numberals | ||
| Base 2 | 11110111000112 | 100000000111012 | 
| Base 3 | 1012112123 | 1020211113 | 
| Base 4 | 13232034 | 20001314 | 
| Base 5 | 2231125 | 2303415 | 
| Base 6 | 1003356 | 1020216 | 
| Base 7 | 320247 | 326537 | 
| Base 8 | 173438 | 200358 | 
| Base 9 | 117559 | 122449 | 
| Base 10 | 790710 | 822110 | 
| Base 11 | 5a3911 | 61a411 | 
| Base 12 | 46ab12 | 491112 | 
| Base 13 | 37a313 | 398513 | 
| Base 14 | 2c4b14 | 2dd314 | 
| Base 15 | 252215 | 268115 | 
| Base 16 | 1ee316 | 201d16 |