Compare 256391 vs 257399
| Property | 256391 | 257399 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 2563911 | 2573991 |
| Prime factorization | 256391 | 257399 |
| Divisors count | 2 | 2 |
| Divisors | 1, 256391 | 1, 257399 |
| Number of properties | 4 | 3 |
| Chen primes | 9323rd | 9349th |
| Harmonic primes | 8403rd | |
| Primes | 22555th | 22629th |
| Twin primes (1st member) | 2636th | 2644th |
| Roman numberals | ||
| Base 2 | 1111101001100001112 | 1111101101011101112 |
| Base 3 | 1110002002223 | 1110020020223 |
| Base 4 | 3322120134 | 3323113134 |
| Base 5 | 312010315 | 312140445 |
| Base 6 | 52545556 | 53033556 |
| Base 7 | 21153327 | 21213027 |
| Base 8 | 7646078 | 7665678 |
| Base 9 | 4306289 | 4320689 |
| Base 10 | 25639110 | 25739910 |
| Base 11 | 1656a311 | 16642a11 |
| Base 12 | 10445b12 | 104b5b12 |
| Base 13 | 8c91513 | 9020c13 |
| Base 14 | 6961914 | 69b3914 |
| Base 15 | 50e7b15 | 513ee15 |
| Base 16 | 3e98716 | 3ed7716 |