Compare 131 vs 199
| Property | 131 | 199 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1311 | 1991 |
| Prime factorization | 131 | 199 |
| Divisors count | 2 | 2 |
| Divisors | 1, 131 | 1, 199 |
| Number of properties | 12 | 10 |
| Additive primes | 17th | 27th |
| Centered triangular primes | 4th | |
| Chen primes | 26th | 36th |
| Cousin primes (2nd member) | 12th | |
| Emirps | 15th | |
| Isolated primes | 13th | |
| Long primes | 12th | |
| Lucas primes | 7th | |
| Multiplicative primes | 10th | |
| Palindromic primes | 7th | |
| Primes | 32nd | 46th |
| Prime quadruplets (4th member) | 4th | |
| Prime triplets (3rd member) | 14th | |
| Sexy primes (1st member) | 20th | |
| Sexy primes (2nd member) | 26th | |
| Solinas primes | 23rd | |
| Sophie germain primes | 12th | |
| Twin primes (2nd member) | 15th | |
| Ulam primes | 8th | |
| Roman numberals | CXXXI | CXCIX |
| Base 2 | 100000112 | 110001112 |
| Base 3 | 112123 | 211013 |
| Base 4 | 20034 | 30134 |
| Base 5 | 10115 | 12445 |
| Base 6 | 3356 | 5316 |
| Base 7 | 2457 | 4037 |
| Base 8 | 2038 | 3078 |
| Base 9 | 1559 | 2419 |
| Base 10 | 13110 | 19910 |
| Base 11 | 10a11 | 17111 |
| Base 12 | ab12 | 14712 |
| Base 13 | a113 | 12413 |
| Base 14 | 9514 | 10314 |
| Base 15 | 8b15 | d415 |
| Base 16 | 8316 | c716 |