Compare 1931 vs 2129
| Property | 1931 | 2129 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 19311 | 21291 |
| Prime factorization | 1931 | 2129 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1931 | 1, 2129 |
| Number of properties | 5 | 5 |
| Chen primes | 182nd | 196th |
| Harmonic primes | 108th | |
| Primes | 294th | 320th |
| Pythagorean primes | 155th | |
| Sophie germain primes | 59th | 65th |
| Twin primes (1st member) | 59th | 66th |
| Roman numberals | MCMXXXI | MMCXXIX |
| Base 2 | 111100010112 | 1000010100012 |
| Base 3 | 21221123 | 22202123 |
| Base 4 | 1320234 | 2011014 |
| Base 5 | 302115 | 320045 |
| Base 6 | 125356 | 135056 |
| Base 7 | 54267 | 61317 |
| Base 8 | 36138 | 41218 |
| Base 9 | 25759 | 28259 |
| Base 10 | 193110 | 212910 |
| Base 11 | 14a611 | 166611 |
| Base 12 | 114b12 | 129512 |
| Base 13 | b5713 | c7a13 |
| Base 14 | 9bd14 | ac114 |
| Base 15 | 88b15 | 96e15 |
| Base 16 | 78b16 | 85116 |