Compare 631 vs 743
| Property | 631 | 743 | 
|---|---|---|
| Type | prime | prime | 
| Unique factors | 1 | 1 | 
| Total factors | 1 | 1 | 
| Prime factorization | 6311 | 7431 | 
| Prime factorization | 631 | 743 | 
| Divisors count | 2 | 2 | 
| Divisors | 1, 631 | 1, 743 | 
| Number of properties | 6 | 8 | 
| Centered triangular primes | 7th | |
| Chen primes | 80th | 89th | 
| Cousin primes (2nd member) | 31st | |
| Cuban primes 1 | 10th | |
| Emirps | 25th | |
| Isolated primes | 60th | 73rd | 
| Left-truncatable primes | 43rd | |
| Long primes | 48th | |
| Lucky primes | 32nd | |
| Primes | 115th | 132nd | 
| Sophie germain primes | 33rd | |
| Roman numberals | DCXXXI | DCCXLIII | 
| Base 2 | 10011101112 | 10111001112 | 
| Base 3 | 2121013 | 10001123 | 
| Base 4 | 213134 | 232134 | 
| Base 5 | 100115 | 104335 | 
| Base 6 | 25316 | 32356 | 
| Base 7 | 15617 | 21117 | 
| Base 8 | 11678 | 13478 | 
| Base 9 | 7719 | 10159 | 
| Base 10 | 63110 | 74310 | 
| Base 11 | 52411 | 61611 | 
| Base 12 | 44712 | 51b12 | 
| Base 13 | 39713 | 45213 | 
| Base 14 | 33114 | 3b114 | 
| Base 15 | 2c115 | 34815 | 
| Base 16 | 27716 | 2e716 |