Compare 211 vs 218
| Property | 211 | 218 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 2111 | 21 × 1091 |
| Prime factorization | 211 | 2 × 109 |
| Divisors count | 2 | 4 |
| Divisors | 1, 211 | 1, 2, 109, 218 |
| Number of properties | 8 | 1 |
| Centered decagonal primes | 6th | |
| Chen primes | 37th | |
| Euclid primes | 5th | |
| Isolated primes | 18th | |
| Lucky primes | 14th | |
| Multiplicative primes | 12th | |
| Primes | 47th | |
| Semiprimes | 73rd | |
| Super primes | 15th | |
| Roman numberals | CCXI | CCXVIII |
| Base 2 | 110100112 | 110110102 |
| Base 3 | 212113 | 220023 |
| Base 4 | 31034 | 31224 |
| Base 5 | 13215 | 13335 |
| Base 6 | 5516 | 10026 |
| Base 7 | 4217 | 4317 |
| Base 8 | 3238 | 3328 |
| Base 9 | 2549 | 2629 |
| Base 10 | 21110 | 21810 |
| Base 11 | 18211 | 18911 |
| Base 12 | 15712 | 16212 |
| Base 13 | 13313 | 13a13 |
| Base 14 | 11114 | 11814 |
| Base 15 | e115 | e815 |
| Base 16 | d316 | da16 |