Compare 219 vs 221
| Property | 219 | 221 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 31 × 731 | 131 × 171 |
| Prime factorization | 3 × 73 | 13 × 17 |
| Divisors count | 4 | 4 |
| Divisors | 1, 3, 73, 219 | 1, 13, 17, 221 |
| Number of properties | 1 | 1 |
| Semiprimes | 74th | 75th |
| Roman numberals | CCXIX | CCXXI |
| Base 2 | 110110112 | 110111012 |
| Base 3 | 220103 | 220123 |
| Base 4 | 31234 | 31314 |
| Base 5 | 13345 | 13415 |
| Base 6 | 10036 | 10056 |
| Base 7 | 4327 | 4347 |
| Base 8 | 3338 | 3358 |
| Base 9 | 2639 | 2659 |
| Base 10 | 21910 | 22110 |
| Base 11 | 18a11 | 19111 |
| Base 12 | 16312 | 16512 |
| Base 13 | 13b13 | 14013 |
| Base 14 | 11914 | 11b14 |
| Base 15 | e915 | eb15 |
| Base 16 | db16 | dd16 |