Compare 211 vs 217
| Property | 211 | 217 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 2111 | 71 × 311 |
| Prime factorization | 211 | 7 × 31 |
| Divisors count | 2 | 4 |
| Divisors | 1, 211 | 1, 7, 31, 217 |
| 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 | 72nd | |
| Super primes | 15th | |
| Roman numberals | CCXI | CCXVII |
| Base 2 | 110100112 | 110110012 |
| Base 3 | 212113 | 220013 |
| Base 4 | 31034 | 31214 |
| Base 5 | 13215 | 13325 |
| Base 6 | 5516 | 10016 |
| Base 7 | 4217 | 4307 |
| Base 8 | 3238 | 3318 |
| Base 9 | 2549 | 2619 |
| Base 10 | 21110 | 21710 |
| Base 11 | 18211 | 18811 |
| Base 12 | 15712 | 16112 |
| Base 13 | 13313 | 13913 |
| Base 14 | 11114 | 11714 |
| Base 15 | e115 | e715 |
| Base 16 | d316 | d916 |