Compare 31123 vs 31991
| Property | 31123 | 31991 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 311231 | 319911 |
| Prime factorization | 31123 | 31991 |
| Divisors count | 2 | 2 |
| Divisors | 1, 31123 | 1, 31991 |
| Number of properties | 3 | 5 |
| Additive primes | 1554th | |
| Emirps | 698th | |
| Isolated primes | 2451st | |
| Primes | 3352nd | 3432nd |
| Twin primes (2nd member) | 480th | |
| Ulam primes | 255th | 263rd |
| Roman numberals | ||
| Base 2 | 1111001100100112 | 1111100111101112 |
| Base 3 | 11202002013 | 11212122123 |
| Base 4 | 132121034 | 133033134 |
| Base 5 | 14434435 | 20104315 |
| Base 6 | 4000316 | 4040356 |
| Base 7 | 1565117 | 1621617 |
| Base 8 | 746238 | 763678 |
| Base 9 | 466219 | 477859 |
| Base 10 | 3112310 | 3199110 |
| Base 11 | 2142411 | 2204311 |
| Base 12 | 1601712 | 1661b12 |
| Base 13 | 1122113 | 1173b13 |
| Base 14 | b4b114 | b93114 |
| Base 15 | 934d15 | 972b15 |
| Base 16 | 799316 | 7cf716 |