Compare 205 vs 211
| Property | 205 | 211 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 51 × 411 | 2111 |
| Prime factorization | 5 × 41 | 211 |
| Divisors count | 4 | 2 |
| Divisors | 1, 5, 41, 205 | 1, 211 |
| Number of properties | 1 | 8 |
| Centered decagonal primes | 6th | |
| Chen primes | 37th | |
| Euclid primes | 5th | |
| Isolated primes | 18th | |
| Lucky primes | 14th | |
| Multiplicative primes | 12th | |
| Primes | 47th | |
| Semiprimes | 66th | |
| Super primes | 15th | |
| Roman numberals | CCV | CCXI |
| Base 2 | 110011012 | 110100112 |
| Base 3 | 211213 | 212113 |
| Base 4 | 30314 | 31034 |
| Base 5 | 13105 | 13215 |
| Base 6 | 5416 | 5516 |
| Base 7 | 4127 | 4217 |
| Base 8 | 3158 | 3238 |
| Base 9 | 2479 | 2549 |
| Base 10 | 20510 | 21110 |
| Base 11 | 17711 | 18211 |
| Base 12 | 15112 | 15712 |
| Base 13 | 12a13 | 13313 |
| Base 14 | 10914 | 11114 |
| Base 15 | da15 | e115 |
| Base 16 | cd16 | d316 |