Compare 8221 vs 9151
| Property | 8221 | 9151 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 82211 | 91511 |
| Prime factorization | 8221 | 9151 |
| Divisors count | 2 | 2 |
| Divisors | 1, 8221 | 1, 9151 |
| Number of properties | 7 | 5 |
| Additive primes | 505th | |
| Chen primes | 554th | |
| Good primes | 167th | |
| Isolated primes | 751st | |
| Lucky primes | 187th | 196th |
| Primes | 1031st | 1134th |
| Pythagorean primes | 511th | |
| Sexy primes (1st member) | 382nd | |
| Super primes | 173rd | |
| Twin primes (2nd member) | 178th | |
| Roman numberals | ||
| Base 2 | 100000000111012 | 100011101111112 |
| Base 3 | 1020211113 | 1101122213 |
| Base 4 | 20001314 | 20323334 |
| Base 5 | 2303415 | 2431015 |
| Base 6 | 1020216 | 1102116 |
| Base 7 | 326537 | 354527 |
| Base 8 | 200358 | 216778 |
| Base 9 | 122449 | 134879 |
| Base 10 | 822110 | 915110 |
| Base 11 | 61a411 | 696a11 |
| Base 12 | 491112 | 536712 |
| Base 13 | 398513 | 421c13 |
| Base 14 | 2dd314 | 349914 |
| Base 15 | 268115 | 2aa115 |
| Base 16 | 201d16 | 23bf16 |