Compare 243 vs 247
| Property | 243 | 247 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 5 | 2 |
| Prime factorization | 35 | 131 × 191 |
| Prime factorization | 3 × 3 × 3 × 3 × 3 | 13 × 19 |
| Divisors count | 6 | 4 |
| Divisors | 1, 3, 9, 27, 81, 243 | 1, 13, 19, 247 |
| Number of properties | 0 | 1 |
| Semiprimes | 79th | |
| Roman numberals | CCXLIII | CCXLVII |
| Base 2 | 111100112 | 111101112 |
| Base 3 | 1000003 | 1000113 |
| Base 4 | 33034 | 33134 |
| Base 5 | 14335 | 14425 |
| Base 6 | 10436 | 10516 |
| Base 7 | 4657 | 5027 |
| Base 8 | 3638 | 3678 |
| Base 9 | 3009 | 3049 |
| Base 10 | 24310 | 24710 |
| Base 11 | 20111 | 20511 |
| Base 12 | 18312 | 18712 |
| Base 13 | 15913 | 16013 |
| Base 14 | 13514 | 13914 |
| Base 15 | 11315 | 11715 |
| Base 16 | f316 | f716 |