Compare 213 vs 223
| Property | 213 | 223 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 31 × 711 | 2231 |
| Prime factorization | 3 × 71 | 223 |
| Divisors count | 4 | 2 |
| Divisors | 1, 3, 71, 213 | 1, 223 |
| Number of properties | 1 | 13 |
| Additive primes | 28th | |
| Carol primes | 3rd | |
| Cousin primes (1st member) | 15th | |
| Good primes | 17th | |
| Harmonic primes | 17th | |
| Isolated primes | 19th | |
| Left-truncatable primes | 21st | |
| Long primes | 18th | |
| Lucky primes | 15th | |
| Primes | 48th | |
| Prime triplets (1st member) | 15th | |
| Semiprimes | 69th | |
| Sexy primes (1st member) | 27th | |
| Solinas primes | 27th | |
| Roman numberals | CCXIII | CCXXIII |
| Base 2 | 110101012 | 110111112 |
| Base 3 | 212203 | 220213 |
| Base 4 | 31114 | 31334 |
| Base 5 | 13235 | 13435 |
| Base 6 | 5536 | 10116 |
| Base 7 | 4237 | 4367 |
| Base 8 | 3258 | 3378 |
| Base 9 | 2569 | 2679 |
| Base 10 | 21310 | 22310 |
| Base 11 | 18411 | 19311 |
| Base 12 | 15912 | 16712 |
| Base 13 | 13513 | 14213 |
| Base 14 | 11314 | 11d14 |
| Base 15 | e315 | ed15 |
| Base 16 | d516 | df16 |