Compare 1021 vs 1279
| Property | 1021 | 1279 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 10211 | 12791 |
| Prime factorization | 1021 | 1279 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1021 | 1, 1279 |
| Number of properties | 8 | 7 |
| Additive primes | 112th | |
| Cousin primes (1st member) | 46th | |
| Emirps | 38th | 60th |
| Harmonic primes | 61st | |
| Long primes | 62nd | |
| Lucky primes | 45th | |
| Primes | 172nd | 207th |
| Prime triplets (2nd member) | 33rd | |
| Pythagorean primes | 83rd | |
| Solinas primes | 46th | 53rd |
| Twin primes (2nd member) | 36th | 43rd |
| Roman numberals | MXXI | MCCLXXIX |
| Base 2 | 11111111012 | 100111111112 |
| Base 3 | 11012113 | 12021013 |
| Base 4 | 333314 | 1033334 |
| Base 5 | 130415 | 201045 |
| Base 6 | 44216 | 55316 |
| Base 7 | 26567 | 35057 |
| Base 8 | 17758 | 23778 |
| Base 9 | 13549 | 16719 |
| Base 10 | 102110 | 127910 |
| Base 11 | 84911 | a6311 |
| Base 12 | 71112 | 8a712 |
| Base 13 | 60713 | 77513 |
| Base 14 | 52d14 | 67514 |
| Base 15 | 48115 | 5a415 |
| Base 16 | 3fd16 | 4ff16 |