Compare 999 vs 1000
| Property | 999 | 1000 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 2 | 2 |
| Total factors | 4 | 6 |
| Prime factorization | 33 × 371 | 23 × 53 |
| Prime factorization | 3 × 3 × 3 × 37 | 2 × 2 × 2 × 5 × 5 × 5 |
| Divisors count | 8 | 16 |
| Divisors | 1, 3, 9, 27, 37, 111, 333, 999 | 1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1000 |
| Number of properties | 0 | 0 |
| Roman numberals | CMXCIX | M |
| Base 2 | 11111001112 | 11111010002 |
| Base 3 | 11010003 | 11010013 |
| Base 4 | 332134 | 332204 |
| Base 5 | 124445 | 130005 |
| Base 6 | 43436 | 43446 |
| Base 7 | 26257 | 26267 |
| Base 8 | 17478 | 17508 |
| Base 9 | 13309 | 13319 |
| Base 10 | 99910 | 100010 |
| Base 11 | 82911 | 82a11 |
| Base 12 | 6b312 | 6b412 |
| Base 13 | 5bb13 | 5bc13 |
| Base 14 | 51514 | 51614 |
| Base 15 | 46915 | 46a15 |
| Base 16 | 3e716 | 3e816 |