Compare 172 vs 173
| Property | 172 | 173 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 2 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 22 × 431 | 1731 |
| Prime factorization | 2 × 2 × 43 | 173 |
| Divisors count | 6 | 2 |
| Divisors | 1, 2, 4, 43, 86, 172 | 1, 173 |
| Number of properties | 0 | 9 |
| Additive primes | 22nd | |
| Isolated primes | 17th | |
| Left-truncatable primes | 19th | |
| Primes | 40th | |
| Pythagorean primes | 18th | |
| Sexy primes (1st member) | 24th | |
| Sexy primes (2nd member) | 23rd | |
| Sexy prime triplets (2nd member) | 13th | |
| Sophie germain primes | 13th | |
| Roman numberals | CLXXII | CLXXIII |
| Base 2 | 101011002 | 101011012 |
| Base 3 | 201013 | 201023 |
| Base 4 | 22304 | 22314 |
| Base 5 | 11425 | 11435 |
| Base 6 | 4446 | 4456 |
| Base 7 | 3347 | 3357 |
| Base 8 | 2548 | 2558 |
| Base 9 | 2119 | 2129 |
| Base 10 | 17210 | 17310 |
| Base 11 | 14711 | 14811 |
| Base 12 | 12412 | 12512 |
| Base 13 | 10313 | 10413 |
| Base 14 | c414 | c514 |
| Base 15 | b715 | b815 |
| Base 16 | ac16 | ad16 |