Compare 4991 vs 4993
| Property | 4991 | 4993 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 71 × 231 × 311 | 49931 |
| Prime factorization | 7 × 23 × 31 | 4993 |
| Divisors count | 8 | 2 |
| Divisors | 1, 7, 23, 31, 161, 217, 713, 4991 | 1, 4993 |
| Number of properties | 0 | 8 |
| Isolated primes | 417th | |
| Lucky primes | 132nd | |
| Primes | 668th | |
| Proth primes | 29th | |
| Pythagorean primes | 329th | |
| Sexy primes (1st member) | 243rd | |
| Sexy primes (2nd member) | 242nd | |
| Sexy prime triplets (2nd member) | 81st | |
| Roman numberals | MMMMCMXCI | MMMMCMXCIII |
| Base 2 | 10011011111112 | 10011100000012 |
| Base 3 | 202112123 | 202112213 |
| Base 4 | 10313334 | 10320014 |
| Base 5 | 1244315 | 1244335 |
| Base 6 | 350356 | 350416 |
| Base 7 | 203607 | 203627 |
| Base 8 | 115778 | 116018 |
| Base 9 | 67559 | 67579 |
| Base 10 | 499110 | 499310 |
| Base 11 | 382811 | 382a11 |
| Base 12 | 2a7b12 | 2a8112 |
| Base 13 | 236c13 | 237113 |
| Base 14 | 1b6714 | 1b6914 |
| Base 15 | 172b15 | 172d15 |
| Base 16 | 137f16 | 138116 |