Compare 1951 vs 1979
| Property | 1951 | 1979 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 19511 | 19791 |
| Prime factorization | 1951 | 1979 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1951 | 1, 1979 |
| Number of properties | 3 | 6 |
| Chen primes | 184th | |
| Cuban primes 1 | 14th | |
| Emirps | 96th | |
| Isolated primes | 180th | |
| Long primes | 116th | |
| Primes | 297th | 299th |
| Sexy primes (2nd member) | 126th | |
| Twin primes (2nd member) | 60th | |
| Roman numberals | MCMLI | MCMLXXIX |
| Base 2 | 111100111112 | 111101110112 |
| Base 3 | 22000213 | 22010223 |
| Base 4 | 1321334 | 1323234 |
| Base 5 | 303015 | 304045 |
| Base 6 | 130116 | 130556 |
| Base 7 | 54557 | 55257 |
| Base 8 | 36378 | 36738 |
| Base 9 | 26079 | 26389 |
| Base 10 | 195110 | 197910 |
| Base 11 | 151411 | 153a11 |
| Base 12 | 116712 | 118b12 |
| Base 13 | b7113 | b9313 |
| Base 14 | 9d514 | a1514 |
| Base 15 | 8a115 | 8be15 |
| Base 16 | 79f16 | 7bb16 |