Compare 53 vs 65
| Property | 53 | 65 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 531 | 51 × 131 |
| Prime factorization | 53 | 5 × 13 |
| Divisors count | 2 | 4 |
| Divisors | 1, 53 | 1, 5, 13, 65 |
| Number of properties | 18 | 1 |
| Chen primes | 15th | |
| Class 1+ primes | 10th | |
| Good primes | 7th | |
| Isolated primes | 5th | |
| Left-truncatable primes | 11th | |
| Pierpont primes of the 2nd kind | 10th | |
| Primes | 16th | |
| Pythagorean primes | 7th | |
| Restricted right-truncatable primes | 1st | |
| Right-truncatable primes | 9th | |
| Semiprimes | 23rd | |
| Sexy primes (1st member) | 11th | |
| Sexy primes (2nd member) | 10th | |
| Sexy prime quadrupletss (3rd member) | 3rd | |
| Sexy prime triplets (2nd member) | 7th | |
| Sexy prime triplets (3rd member) | 6th | |
| Sophie germain primes | 8th | |
| Two-sided primes | 7th | |
| Ulam primes | 6th | |
| Roman numberals | LIII | LXV |
| Base 2 | 1101012 | 10000012 |
| Base 3 | 12223 | 21023 |
| Base 4 | 3114 | 10014 |
| Base 5 | 2035 | 2305 |
| Base 6 | 1256 | 1456 |
| Base 7 | 1047 | 1227 |
| Base 8 | 658 | 1018 |
| Base 9 | 589 | 729 |
| Base 10 | 5310 | 6510 |
| Base 11 | 4911 | 5a11 |
| Base 12 | 4512 | 5512 |
| Base 13 | 4113 | 5013 |
| Base 14 | 3b14 | 4914 |
| Base 15 | 3815 | 4515 |
| Base 16 | 3516 | 4116 |