Compare 29 vs 51
| Property | 29 | 51 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 291 | 31 × 171 |
| Prime factorization | 29 | 3 × 17 |
| Divisors count | 2 | 4 |
| Divisors | 1, 29 | 1, 3, 17, 51 |
| Number of properties | 14 | 1 |
| Additive primes | 7th | |
| Chen primes | 10th | |
| Good primes | 4th | |
| Long primes | 5th | |
| Lucas primes | 5th | |
| Primes | 10th | |
| Pythagorean primes | 4th | |
| Right-truncatable primes | 6th | |
| Semiprimes | 18th | |
| Sexy primes (2nd member) | 6th | |
| Sexy prime quadrupletss (4th member) | 2nd | |
| Sexy prime triplets (3rd member) | 4th | |
| Solinas primes | 9th | |
| Sophie germain primes | 6th | |
| Twin primes (1st member) | 5th | |
| Roman numberals | XXIX | LI |
| Base 2 | 111012 | 1100112 |
| Base 3 | 10023 | 12203 |
| Base 4 | 1314 | 3034 |
| Base 5 | 1045 | 2015 |
| Base 6 | 456 | 1236 |
| Base 7 | 417 | 1027 |
| Base 8 | 358 | 638 |
| Base 9 | 329 | 569 |
| Base 10 | 2910 | 5110 |
| Base 11 | 2711 | 4711 |
| Base 12 | 2512 | 4312 |
| Base 13 | 2313 | 3c13 |
| Base 14 | 2114 | 3914 |
| Base 15 | 1e15 | 3615 |
| Base 16 | 1d16 | 3316 |