Compare 77 vs 89
| Property | 77 | 89 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 71 × 111 | 891 |
| Prime factorization | 7 × 11 | 89 |
| Divisors count | 4 | 2 |
| Divisors | 1, 7, 11, 77 | 1, 89 |
| Number of properties | 1 | 8 |
| Additive primes | 14th | |
| Chen primes | 20th | |
| Fibonacci primes | 5th | |
| Isolated primes | 9th | |
| Primes | 24th | |
| Pythagorean primes | 10th | |
| Semiprimes | 26th | |
| Sexy primes (2nd member) | 15th | |
| Sophie germain primes | 10th | |
| Roman numberals | LXXVII | LXXXIX |
| Base 2 | 10011012 | 10110012 |
| Base 3 | 22123 | 100223 |
| Base 4 | 10314 | 11214 |
| Base 5 | 3025 | 3245 |
| Base 6 | 2056 | 2256 |
| Base 7 | 1407 | 1557 |
| Base 8 | 1158 | 1318 |
| Base 9 | 859 | 1089 |
| Base 10 | 7710 | 8910 |
| Base 11 | 7011 | 8111 |
| Base 12 | 6512 | 7512 |
| Base 13 | 5c13 | 6b13 |
| Base 14 | 5714 | 6514 |
| Base 15 | 5215 | 5e15 |
| Base 16 | 4d16 | 5916 |