Compare 6543 vs 6551
| Property | 6543 | 6551 | 
|---|---|---|
| Type | composite number | prime | 
| Unique factors | 2 | 1 | 
| Total factors | 3 | 1 | 
| Prime factorization | 32 × 7271 | 65511 | 
| Prime factorization | 3 × 3 × 727 | 6551 | 
| Divisors count | 6 | 2 | 
| Divisors | 1, 3, 9, 727, 2181, 6543 | 1, 6551 | 
| Number of properties | 0 | 9 | 
| Additive primes | 423rd | |
| Chen primes | 462nd | |
| Cousin primes (2nd member) | 147th | |
| Good primes | 130th | |
| Harmonic primes | 306th | |
| Primes | 846th | |
| Prime triplets (2nd member) | 93rd | |
| Sophie germain primes | 145th | |
| Twin primes (1st member) | 151st | |
| Roman numberals | ||
| Base 2 | 11001100011112 | 11001100101112 | 
| Base 3 | 222221003 | 222221223 | 
| Base 4 | 12120334 | 12121134 | 
| Base 5 | 2021335 | 2022015 | 
| Base 6 | 501436 | 501556 | 
| Base 7 | 250357 | 250467 | 
| Base 8 | 146178 | 146278 | 
| Base 9 | 88709 | 88789 | 
| Base 10 | 654310 | 655110 | 
| Base 11 | 4a0911 | 4a1611 | 
| Base 12 | 395312 | 395b12 | 
| Base 13 | 2c9413 | 2c9c13 | 
| Base 14 | 255514 | 255d14 | 
| Base 15 | 1e1315 | 1e1b15 | 
| Base 16 | 198f16 | 199716 |