Compare 19 vs 179
| Property | 19 | 179 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 191 | 1791 |
| Prime factorization | 19 | 179 |
| Divisors count | 2 | 2 |
| Divisors | 1, 19 | 1, 179 |
| Number of properties | 18 | 13 |
| Additive primes | 23rd | |
| Centered triangular primes | 1st | |
| Chen primes | 8th | 32nd |
| Cousin primes (1st member) | 4th | |
| Cuban primes 1 | 2nd | |
| Emirps | 14th | |
| Good primes | 15th | |
| Happy primes | 3rd | |
| Harmonic primes | 14th | |
| Long primes | 3rd | 15th |
| Pierpont primes | 7th | |
| Primes | 8th | 41st |
| Prime quadruplets (4th member) | 2nd | |
| Prime quintuplet 1s (5th member) | 1st | |
| Prime quintuplet 2s (4th member) | 2nd | |
| Prime sextuplets (5th member) | 1st | |
| Prime triplets (2nd member) | 5th | |
| Prime triplets (3rd member) | 4th | |
| Safe primes | 10th | |
| Sexy primes (2nd member) | 4th | 24th |
| Sexy prime triplets (3rd member) | 2nd | 13th |
| Solinas primes | 7th | |
| Sophie germain primes | 14th | |
| Super primes | 13th | |
| Twin primes (1st member) | 13th | |
| Twin primes (2nd member) | 4th | |
| Roman numberals | XIX | CLXXIX |
| Base 2 | 100112 | 101100112 |
| Base 3 | 2013 | 201223 |
| Base 4 | 1034 | 23034 |
| Base 5 | 345 | 12045 |
| Base 6 | 316 | 4556 |
| Base 7 | 257 | 3447 |
| Base 8 | 238 | 2638 |
| Base 9 | 219 | 2189 |
| Base 10 | 1910 | 17910 |
| Base 11 | 1811 | 15311 |
| Base 12 | 1712 | 12b12 |
| Base 13 | 1613 | 10a13 |
| Base 14 | 1514 | cb14 |
| Base 15 | 1415 | be15 |
| Base 16 | 1316 | b316 |