Compare 497 vs 499
| Property | 497 | 499 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 71 × 711 | 4991 |
| Prime factorization | 7 × 71 | 499 |
| Divisors count | 4 | 2 |
| Divisors | 1, 7, 71, 497 | 1, 499 |
| Number of properties | 1 | 6 |
| Chen primes | 67th | |
| Cousin primes (1st member) | 27th | |
| Harmonic primes | 39th | |
| Isolated primes | 48th | |
| Long primes | 35th | |
| Primes | 95th | |
| Semiprimes | 153rd | |
| Roman numberals | CDXCVII | CDXCIX |
| Base 2 | 1111100012 | 1111100112 |
| Base 3 | 2001023 | 2001113 |
| Base 4 | 133014 | 133034 |
| Base 5 | 34425 | 34445 |
| Base 6 | 21456 | 21516 |
| Base 7 | 13107 | 13127 |
| Base 8 | 7618 | 7638 |
| Base 9 | 6129 | 6149 |
| Base 10 | 49710 | 49910 |
| Base 11 | 41211 | 41411 |
| Base 12 | 35512 | 35712 |
| Base 13 | 2c313 | 2c513 |
| Base 14 | 27714 | 27914 |
| Base 15 | 23215 | 23415 |
| Base 16 | 1f116 | 1f316 |