Compare 257989 vs 257991
| Property | 257989 | 257991 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 2579891 | 31 × 231 × 37391 |
| Prime factorization | 257989 | 3 × 23 × 3739 |
| Divisors count | 2 | 8 |
| Divisors | 1, 257989 | 1, 3, 23, 69, 3739, 11217, 85997, 257991 |
| Number of properties | 5 | 0 |
| Cousin primes (1st member) | 2645th | |
| Long primes | 8489th | |
| Primes | 22674th | |
| Prime triplets (2nd member) | 1031st | |
| Twin primes (2nd member) | 2650th | |
| Roman numberals | ||
| Base 2 | 1111101111110001012 | 1111101111110001112 |
| Base 3 | 1110022200113 | 1110022200203 |
| Base 4 | 3323330114 | 3323330134 |
| Base 5 | 312234245 | 312234315 |
| Base 6 | 53102216 | 53102236 |
| Base 7 | 21231047 | 21231067 |
| Base 8 | 7677058 | 7677078 |
| Base 9 | 4328049 | 4328069 |
| Base 10 | 25798910 | 25799110 |
| Base 11 | 16691611 | 16691811 |
| Base 12 | 10537112 | 10537312 |
| Base 13 | 9057413 | 9057613 |
| Base 14 | 6a03b14 | 6a03d14 |
| Base 15 | 5169415 | 5169615 |
| Base 16 | 3efc516 | 3efc716 |