Compare 7643 vs 8147
| Property | 7643 | 8147 | 
|---|---|---|
| Type | prime | prime | 
| Unique factors | 1 | 1 | 
| Total factors | 1 | 1 | 
| Prime factorization | 76431 | 81471 | 
| Prime factorization | 7643 | 8147 | 
| Divisors count | 2 | 2 | 
| Divisors | 1, 7643 | 1, 8147 | 
| Number of properties | 9 | 5 | 
| Chen primes | 550th | |
| Cousin primes (2nd member) | 162nd | |
| Emirps | 174th | |
| Happy primes | 176th | |
| Harmonic primes | 354th | |
| Isolated primes | 627th | 670th | 
| Left-truncatable primes | 130th | |
| Primes | 970th | 1023rd | 
| Safe primes | 98th | 103rd | 
| Sexy primes (1st member) | 334th | |
| Sophie germain primes | 161st | |
| Roman numberals | ||
| Base 2 | 11101110110112 | 11111110100112 | 
| Base 3 | 1011110023 | 1020112023 | 
| Base 4 | 13131234 | 13331034 | 
| Base 5 | 2210335 | 2300425 | 
| Base 6 | 552156 | 1014156 | 
| Base 7 | 311667 | 325167 | 
| Base 8 | 167338 | 177238 | 
| Base 9 | 114329 | 121529 | 
| Base 10 | 764310 | 814710 | 
| Base 11 | 581911 | 613711 | 
| Base 12 | 450b12 | 486b12 | 
| Base 13 | 362c13 | 392913 | 
| Base 14 | 2add14 | 2d7d14 | 
| Base 15 | 23e815 | 263215 | 
| Base 16 | 1ddb16 | 1fd316 |