Compare 42157 vs 42221
| Property | 42157 | 42221 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 421571 | 422211 |
| Prime factorization | 42157 | 42221 |
| Divisors count | 2 | 2 |
| Divisors | 1, 42157 | 1, 42221 |
| Number of properties | 5 | 9 |
| Additive primes | 1965th | 1970th |
| Chen primes | 2073rd | |
| Harmonic primes | 1641st | |
| Isolated primes | 3181st | |
| Long primes | 1661st | |
| Primes | 4406th | 4414th |
| Prime triplets (1st member) | 287th | |
| Pythagorean primes | 2184th | 2190th |
| Sexy primes (1st member) | 1251st | |
| Sophie germain primes | 589th | |
| Twin primes (1st member) | 615th | |
| Roman numberals | ||
| Base 2 | 10100100101011012 | 10100100111011012 |
| Base 3 | 20102111013 | 20102202023 |
| Base 4 | 221022314 | 221032314 |
| Base 5 | 23221125 | 23223415 |
| Base 6 | 5231016 | 5232456 |
| Base 7 | 2336237 | 2340447 |
| Base 8 | 1222558 | 1223558 |
| Base 9 | 637419 | 638229 |
| Base 10 | 4215710 | 4222110 |
| Base 11 | 2974511 | 297a311 |
| Base 12 | 2049112 | 2052512 |
| Base 13 | 1625b13 | 162aa13 |
| Base 14 | 1151314 | 1155b14 |
| Base 15 | c75715 | c79b15 |
| Base 16 | a4ad16 | a4ed16 |