Compare 839 vs 971
| Property | 839 | 971 | 
|---|---|---|
| Type | prime | prime | 
| Unique factors | 1 | 1 | 
| Total factors | 1 | 1 | 
| Prime factorization | 8391 | 9711 | 
| Prime factorization | 839 | 971 | 
| Divisors count | 2 | 2 | 
| Divisors | 1, 839 | 1, 971 | 
| Number of properties | 4 | 11 | 
| Additive primes | 87th | |
| Chen primes | 100th | 112th | 
| Class 1+ primes | 19th | |
| Cousin primes (2nd member) | 41st | |
| Emirps | 34th | |
| Isolated primes | 81st | 95th | 
| Long primes | 58th | |
| Pierpont primes of the 2nd kind | 19th | |
| Primes | 146th | 164th | 
| Safe primes | 22nd | |
| Sexy primes (1st member) | 72nd | |
| Sexy prime triplets (1st member) | 28th | |
| Roman numberals | DCCCXXXIX | CMLXXI | 
| Base 2 | 11010001112 | 11110010112 | 
| Base 3 | 10110023 | 10222223 | 
| Base 4 | 310134 | 330234 | 
| Base 5 | 113245 | 123415 | 
| Base 6 | 35156 | 42556 | 
| Base 7 | 23067 | 25557 | 
| Base 8 | 15078 | 17138 | 
| Base 9 | 11329 | 12889 | 
| Base 10 | 83910 | 97110 | 
| Base 11 | 6a311 | 80311 | 
| Base 12 | 59b12 | 68b12 | 
| Base 13 | 4c713 | 59913 | 
| Base 14 | 43d14 | 4d514 | 
| Base 15 | 3ae15 | 44b15 | 
| Base 16 | 34716 | 3cb16 |