Compare 7901 vs 8221
| Property | 7901 | 8221 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 79011 | 82211 |
| Prime factorization | 7901 | 8221 |
| Divisors count | 2 | 2 |
| Divisors | 1, 7901 | 1, 8221 |
| Number of properties | 10 | 7 |
| Additive primes | 493rd | 505th |
| Chen primes | 537th | 554th |
| Emirps | 186th | |
| Harmonic primes | 367th | |
| Isolated primes | 651st | |
| Long primes | 387th | |
| Lucky primes | 187th | |
| Primes | 998th | 1031st |
| Pythagorean primes | 495th | 511th |
| Sexy primes (1st member) | 343rd | |
| Sophie germain primes | 167th | |
| Super primes | 173rd | |
| Twin primes (2nd member) | 178th | |
| Roman numberals | ||
| Base 2 | 11110110111012 | 100000000111012 |
| Base 3 | 1012111223 | 1020211113 |
| Base 4 | 13231314 | 20001314 |
| Base 5 | 2231015 | 2303415 |
| Base 6 | 1003256 | 1020216 |
| Base 7 | 320157 | 326537 |
| Base 8 | 173358 | 200358 |
| Base 9 | 117489 | 122449 |
| Base 10 | 790110 | 822110 |
| Base 11 | 5a3311 | 61a411 |
| Base 12 | 46a512 | 491112 |
| Base 13 | 379a13 | 398513 |
| Base 14 | 2c4514 | 2dd314 |
| Base 15 | 251b15 | 268115 |
| Base 16 | 1edd16 | 201d16 |