Compare 857 vs 1021
| Property | 857 | 1021 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 8571 | 10211 |
| Prime factorization | 857 | 1021 |
| Divisors count | 2 | 2 |
| Divisors | 1, 857 | 1, 1021 |
| Number of properties | 9 | 8 |
| Chen primes | 101st | |
| Cousin primes (2nd member) | 35th | |
| Emirps | 38th | |
| Harmonic primes | 61st | |
| Long primes | 52nd | 62nd |
| Lucky primes | 45th | |
| Primes | 148th | 172nd |
| Prime triplets (1st member) | 28th | |
| Prime triplets (2nd member) | 27th | |
| Pythagorean primes | 72nd | 83rd |
| Sexy primes (1st member) | 67th | |
| Solinas primes | 46th | |
| Twin primes (1st member) | 34th | |
| Twin primes (2nd member) | 36th | |
| Roman numberals | DCCCLVII | MXXI |
| Base 2 | 11010110012 | 11111111012 |
| Base 3 | 10112023 | 11012113 |
| Base 4 | 311214 | 333314 |
| Base 5 | 114125 | 130415 |
| Base 6 | 35456 | 44216 |
| Base 7 | 23337 | 26567 |
| Base 8 | 15318 | 17758 |
| Base 9 | 11529 | 13549 |
| Base 10 | 85710 | 102110 |
| Base 11 | 70a11 | 84911 |
| Base 12 | 5b512 | 71112 |
| Base 13 | 50c13 | 60713 |
| Base 14 | 45314 | 52d14 |
| Base 15 | 3c215 | 48115 |
| Base 16 | 35916 | 3fd16 |