Compare 43 vs 131
| Property | 43 | 131 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 431 | 1311 |
| Prime factorization | 43 | 131 |
| Divisors count | 2 | 2 |
| Divisors | 1, 43 | 1, 131 |
| Number of properties | 12 | 12 |
| Additive primes | 9th | 17th |
| Centered heptagonal primes | 1st | |
| Chen primes | 26th | |
| Cousin primes (1st member) | 6th | |
| Cousin primes (2nd member) | 12th | |
| Isolated primes | 13th | |
| Left-truncatable primes | 9th | |
| Long primes | 12th | |
| Lucky primes | 6th | |
| Multiplicative primes | 10th | |
| Palindromic primes | 7th | |
| Primes | 14th | 32nd |
| Prime triplets (2nd member) | 7th | |
| Prime triplets (3rd member) | 6th | |
| Sexy primes (1st member) | 20th | |
| Sexy primes (2nd member) | 8th | |
| Sexy prime triplets (3rd member) | 5th | |
| Solinas primes | 23rd | |
| Sophie germain primes | 12th | |
| Twin primes (2nd member) | 6th | |
| Ulam primes | 8th | |
| Wagstaff primes | 3rd | |
| Roman numberals | XLIII | CXXXI |
| Base 2 | 1010112 | 100000112 |
| Base 3 | 11213 | 112123 |
| Base 4 | 2234 | 20034 |
| Base 5 | 1335 | 10115 |
| Base 6 | 1116 | 3356 |
| Base 7 | 617 | 2457 |
| Base 8 | 538 | 2038 |
| Base 9 | 479 | 1559 |
| Base 10 | 4310 | 13110 |
| Base 11 | 3a11 | 10a11 |
| Base 12 | 3712 | ab12 |
| Base 13 | 3413 | a113 |
| Base 14 | 3114 | 9514 |
| Base 15 | 2d15 | 8b15 |
| Base 16 | 2b16 | 8316 |