Compare 1031 vs 1187
| Property | 1031 | 1187 | 
|---|---|---|
| Type | prime | prime | 
| Unique factors | 1 | 1 | 
| Total factors | 1 | 1 | 
| Prime factorization | 10311 | 11871 | 
| Prime factorization | 1031 | 1187 | 
| Divisors count | 2 | 2 | 
| Divisors | 1, 1031 | 1, 1187 | 
| Number of properties | 9 | 8 | 
| Additive primes | 92nd | 105th | 
| Chen primes | 118th | 128th | 
| Emirps | 39th | |
| Good primes | 46th | |
| Isolated primes | 114th | |
| Primes | 173rd | 195th | 
| Safe primes | 27th | |
| Sexy primes (1st member) | 85th | |
| Sexy primes (2nd member) | 84th | |
| Sexy prime triplets (2nd member) | 32nd | |
| Solinas primes | 47th | |
| Sophie germain primes | 40th | |
| Super primes | 40th | |
| Twin primes (1st member) | 37th | |
| Roman numberals | MXXXI | MCLXXXVII | 
| Base 2 | 100000001112 | 100101000112 | 
| Base 3 | 11020123 | 11212223 | 
| Base 4 | 1000134 | 1022034 | 
| Base 5 | 131115 | 142225 | 
| Base 6 | 44356 | 52556 | 
| Base 7 | 30027 | 33147 | 
| Base 8 | 20078 | 22438 | 
| Base 9 | 13659 | 15589 | 
| Base 10 | 103110 | 118710 | 
| Base 11 | 85811 | 98a11 | 
| Base 12 | 71b12 | 82b12 | 
| Base 13 | 61413 | 70413 | 
| Base 14 | 53914 | 60b14 | 
| Base 15 | 48b15 | 54215 | 
| Base 16 | 40716 | 4a316 |