Compare 1977 vs 1978
| Property | 1977 | 1978 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 3 |
| Prime factorization | 31 × 6591 | 21 × 231 × 431 |
| Prime factorization | 3 × 659 | 2 × 23 × 43 |
| Divisors count | 4 | 8 |
| Divisors | 1, 3, 659, 1977 | 1, 2, 23, 43, 46, 86, 989, 1978 |
| Number of properties | 1 | 0 |
| Semiprimes | 571st | |
| Roman numberals | MCMLXXVII | MCMLXXVIII |
| Base 2 | 111101110012 | 111101110102 |
| Base 3 | 22010203 | 22010213 |
| Base 4 | 1323214 | 1323224 |
| Base 5 | 304025 | 304035 |
| Base 6 | 130536 | 130546 |
| Base 7 | 55237 | 55247 |
| Base 8 | 36718 | 36728 |
| Base 9 | 26369 | 26379 |
| Base 10 | 197710 | 197810 |
| Base 11 | 153811 | 153911 |
| Base 12 | 118912 | 118a12 |
| Base 13 | b9113 | b9213 |
| Base 14 | a1314 | a1414 |
| Base 15 | 8bc15 | 8bd15 |
| Base 16 | 7b916 | 7ba16 |