Compare 4991 vs 4999
| Property | 4991 | 4999 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 71 × 231 × 311 | 49991 |
| Prime factorization | 7 × 23 × 31 | 4999 |
| Divisors count | 8 | 2 |
| Divisors | 1, 7, 23, 31, 161, 217, 713, 4991 | 1, 4999 |
| Number of properties | 0 | 8 |
| Additive primes | 338th | |
| Chen primes | 378th | |
| Cousin primes (1st member) | 122nd | |
| Isolated primes | 418th | |
| Lucky primes | 133rd | |
| Primes | 669th | |
| Sexy primes (2nd member) | 243rd | |
| Sexy prime triplets (3rd member) | 81st | |
| Roman numberals | MMMMCMXCI | MMMMCMXCIX |
| Base 2 | 10011011111112 | 10011100001112 |
| Base 3 | 202112123 | 202120113 |
| Base 4 | 10313334 | 10320134 |
| Base 5 | 1244315 | 1244445 |
| Base 6 | 350356 | 350516 |
| Base 7 | 203607 | 204017 |
| Base 8 | 115778 | 116078 |
| Base 9 | 67559 | 67649 |
| Base 10 | 499110 | 499910 |
| Base 11 | 382811 | 383511 |
| Base 12 | 2a7b12 | 2a8712 |
| Base 13 | 236c13 | 237713 |
| Base 14 | 1b6714 | 1b7114 |
| Base 15 | 172b15 | 173415 |
| Base 16 | 137f16 | 138716 |