Compare 998 vs 1000
| Property | 998 | 1000 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 2 |
| Total factors | 2 | 6 |
| Prime factorization | 21 × 4991 | 23 × 53 |
| Prime factorization | 2 × 499 | 2 × 2 × 2 × 5 × 5 × 5 |
| Divisors count | 4 | 16 |
| Divisors | 1, 2, 499, 998 | 1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1000 |
| Number of properties | 1 | 0 |
| Semiprimes | 299th | |
| Roman numberals | CMXCVIII | M |
| Base 2 | 11111001102 | 11111010002 |
| Base 3 | 11002223 | 11010013 |
| Base 4 | 332124 | 332204 |
| Base 5 | 124435 | 130005 |
| Base 6 | 43426 | 43446 |
| Base 7 | 26247 | 26267 |
| Base 8 | 17468 | 17508 |
| Base 9 | 13289 | 13319 |
| Base 10 | 99810 | 100010 |
| Base 11 | 82811 | 82a11 |
| Base 12 | 6b212 | 6b412 |
| Base 13 | 5ba13 | 5bc13 |
| Base 14 | 51414 | 51614 |
| Base 15 | 46815 | 46a15 |
| Base 16 | 3e616 | 3e816 |