Compare 1979 vs 2129
| Property | 1979 | 2129 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 19791 | 21291 |
| Prime factorization | 1979 | 2129 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1979 | 1, 2129 |
| Number of properties | 6 | 5 |
| Chen primes | 184th | 196th |
| Emirps | 96th | |
| Isolated primes | 180th | |
| Long primes | 116th | |
| Primes | 299th | 320th |
| Pythagorean primes | 155th | |
| Sexy primes (2nd member) | 126th | |
| Sophie germain primes | 65th | |
| Twin primes (1st member) | 66th | |
| Roman numberals | MCMLXXIX | MMCXXIX |
| Base 2 | 111101110112 | 1000010100012 |
| Base 3 | 22010223 | 22202123 |
| Base 4 | 1323234 | 2011014 |
| Base 5 | 304045 | 320045 |
| Base 6 | 130556 | 135056 |
| Base 7 | 55257 | 61317 |
| Base 8 | 36738 | 41218 |
| Base 9 | 26389 | 28259 |
| Base 10 | 197910 | 212910 |
| Base 11 | 153a11 | 166611 |
| Base 12 | 118b12 | 129512 |
| Base 13 | b9313 | c7a13 |
| Base 14 | a1514 | ac114 |
| Base 15 | 8be15 | 96e15 |
| Base 16 | 7bb16 | 85116 |