Compare 1978 vs 1979
| Property | 1978 | 1979 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 231 × 431 | 19791 |
| Prime factorization | 2 × 23 × 43 | 1979 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 23, 43, 46, 86, 989, 1978 | 1, 1979 |
| Number of properties | 0 | 6 |
| Chen primes | 184th | |
| Emirps | 96th | |
| Isolated primes | 180th | |
| Long primes | 116th | |
| Primes | 299th | |
| Sexy primes (2nd member) | 126th | |
| Roman numberals | MCMLXXVIII | MCMLXXIX |
| Base 2 | 111101110102 | 111101110112 |
| Base 3 | 22010213 | 22010223 |
| Base 4 | 1323224 | 1323234 |
| Base 5 | 304035 | 304045 |
| Base 6 | 130546 | 130556 |
| Base 7 | 55247 | 55257 |
| Base 8 | 36728 | 36738 |
| Base 9 | 26379 | 26389 |
| Base 10 | 197810 | 197910 |
| Base 11 | 153911 | 153a11 |
| Base 12 | 118a12 | 118b12 |
| Base 13 | b9213 | b9313 |
| Base 14 | a1414 | a1514 |
| Base 15 | 8bd15 | 8be15 |
| Base 16 | 7ba16 | 7bb16 |