Compare 181 vs 223
| Property | 181 | 223 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1811 | 2231 |
| Prime factorization | 181 | 223 |
| Divisors count | 2 | 2 |
| Divisors | 1, 181 | 1, 223 |
| Number of properties | 8 | 13 |
| Additive primes | 28th | |
| Carol primes | 3rd | |
| Centered square primes | 6th | |
| Chen primes | 33rd | |
| Cousin primes (1st member) | 15th | |
| Dihedral primes | 5th | |
| Good primes | 17th | |
| Harmonic primes | 17th | |
| Isolated primes | 19th | |
| Left-truncatable primes | 21st | |
| Long primes | 16th | 18th |
| Lucky primes | 15th | |
| Palindromic primes | 9th | |
| Primes | 42nd | 48th |
| Prime triplets (1st member) | 15th | |
| Pythagorean primes | 19th | |
| Sexy primes (1st member) | 27th | |
| Solinas primes | 27th | |
| Twin primes (2nd member) | 13th | |
| Roman numberals | CLXXXI | CCXXIII |
| Base 2 | 101101012 | 110111112 |
| Base 3 | 202013 | 220213 |
| Base 4 | 23114 | 31334 |
| Base 5 | 12115 | 13435 |
| Base 6 | 5016 | 10116 |
| Base 7 | 3467 | 4367 |
| Base 8 | 2658 | 3378 |
| Base 9 | 2219 | 2679 |
| Base 10 | 18110 | 22310 |
| Base 11 | 15511 | 19311 |
| Base 12 | 13112 | 16712 |
| Base 13 | 10c13 | 14213 |
| Base 14 | cd14 | 11d14 |
| Base 15 | c115 | ed15 |
| Base 16 | b516 | df16 |