Compare 87 vs 99
| Property | 87 | 99 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 2 |
| Total factors | 2 | 3 |
| Prime factorization | 31 × 291 | 32 × 111 |
| Prime factorization | 3 × 29 | 3 × 3 × 11 |
| Divisors count | 4 | 6 |
| Divisors | 1, 3, 29, 87 | 1, 3, 9, 11, 33, 99 |
| Number of properties | 1 | 0 |
| Semiprimes | 30th | |
| Roman numberals | LXXXVII | XCIX |
| Base 2 | 10101112 | 11000112 |
| Base 3 | 100203 | 102003 |
| Base 4 | 11134 | 12034 |
| Base 5 | 3225 | 3445 |
| Base 6 | 2236 | 2436 |
| Base 7 | 1537 | 2017 |
| Base 8 | 1278 | 1438 |
| Base 9 | 1069 | 1209 |
| Base 10 | 8710 | 9910 |
| Base 11 | 7a11 | 9011 |
| Base 12 | 7312 | 8312 |
| Base 13 | 6913 | 7813 |
| Base 14 | 6314 | 7114 |
| Base 15 | 5c15 | 6915 |
| Base 16 | 5716 | 6316 |