Compare 2551 vs 2558
| Property | 2551 | 2558 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 25511 | 21 × 12791 |
| Prime factorization | 2551 | 2 × 1279 |
| Divisors count | 2 | 4 |
| Divisors | 1, 2551 | 1, 2, 1279, 2558 |
| Number of properties | 4 | 1 |
| Additive primes | 195th | |
| Primes | 374th | |
| Semiprimes | 722nd | |
| Sexy primes (1st member) | 153rd | |
| Twin primes (2nd member) | 73rd | |
| Roman numberals | MMDLI | MMDLVIII |
| Base 2 | 1001111101112 | 1001111111102 |
| Base 3 | 101111113 | 101112023 |
| Base 4 | 2133134 | 2133324 |
| Base 5 | 402015 | 402135 |
| Base 6 | 154516 | 155026 |
| Base 7 | 103037 | 103137 |
| Base 8 | 47678 | 47768 |
| Base 9 | 34449 | 34529 |
| Base 10 | 255110 | 255810 |
| Base 11 | 1a0a11 | 1a1611 |
| Base 12 | 158712 | 159212 |
| Base 13 | 121313 | 121a13 |
| Base 14 | d0314 | d0a14 |
| Base 15 | b5115 | b5815 |
| Base 16 | 9f716 | 9fe16 |