Compare 163 vs 172
| Property | 163 | 172 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 2 |
| Total factors | 1 | 3 |
| Prime factorization | 1631 | 22 × 431 |
| Prime factorization | 163 | 2 × 2 × 43 |
| Divisors count | 2 | 6 |
| Divisors | 1, 163 | 1, 2, 4, 43, 86, 172 |
| Number of properties | 7 | 0 |
| Cousin primes (1st member) | 13th | |
| Isolated primes | 15th | |
| Lucky primes | 12th | |
| Pierpont primes | 12th | |
| Primes | 38th | |
| Sexy primes (2nd member) | 22nd | |
| Sexy prime triplets (3rd member) | 12th | |
| Roman numberals | CLXIII | CLXXII |
| Base 2 | 101000112 | 101011002 |
| Base 3 | 200013 | 201013 |
| Base 4 | 22034 | 22304 |
| Base 5 | 11235 | 11425 |
| Base 6 | 4316 | 4446 |
| Base 7 | 3227 | 3347 |
| Base 8 | 2438 | 2548 |
| Base 9 | 2019 | 2119 |
| Base 10 | 16310 | 17210 |
| Base 11 | 13911 | 14711 |
| Base 12 | 11712 | 12412 |
| Base 13 | c713 | 10313 |
| Base 14 | b914 | c414 |
| Base 15 | ad15 | b715 |
| Base 16 | a316 | ac16 |