Compare 999 vs 1001
| Property | 999 | 1001 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 2 | 3 |
| Total factors | 4 | 3 |
| Prime factorization | 33 × 371 | 71 × 111 × 131 |
| Prime factorization | 3 × 3 × 3 × 37 | 7 × 11 × 13 |
| Divisors count | 8 | 8 |
| Divisors | 1, 3, 9, 27, 37, 111, 333, 999 | 1, 7, 11, 13, 77, 91, 143, 1001 |
| Number of properties | 0 | 0 |
| Roman numberals | CMXCIX | MI |
| Base 2 | 11111001112 | 11111010012 |
| Base 3 | 11010003 | 11010023 |
| Base 4 | 332134 | 332214 |
| Base 5 | 124445 | 130015 |
| Base 6 | 43436 | 43456 |
| Base 7 | 26257 | 26307 |
| Base 8 | 17478 | 17518 |
| Base 9 | 13309 | 13329 |
| Base 10 | 99910 | 100110 |
| Base 11 | 82911 | 83011 |
| Base 12 | 6b312 | 6b512 |
| Base 13 | 5bb13 | 5c013 |
| Base 14 | 51514 | 51714 |
| Base 15 | 46915 | 46b15 |
| Base 16 | 3e716 | 3e916 |