Compare 68 vs 71
| Property | 68 | 71 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 2 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 22 × 171 | 711 |
| Prime factorization | 2 × 2 × 17 | 71 |
| Divisors count | 6 | 2 |
| Divisors | 1, 2, 4, 17, 34, 68 | 1, 71 |
| Number of properties | 0 | 13 |
| Centered heptagonal primes | 2nd | |
| Chen primes | 18th | |
| Class 1+ primes | 11th | |
| Cousin primes (2nd member) | 7th | |
| Emirps | 5th | |
| Good primes | 10th | |
| Multiplicative primes | 8th | |
| Pierpont primes of the 2nd kind | 11th | |
| Primes | 20th | |
| Prime triplets (2nd member) | 8th | |
| Right-truncatable primes | 11th | |
| Solinas primes | 17th | |
| Twin primes (1st member) | 8th | |
| Roman numberals | LXVIII | LXXI |
| Base 2 | 10001002 | 10001112 |
| Base 3 | 21123 | 21223 |
| Base 4 | 10104 | 10134 |
| Base 5 | 2335 | 2415 |
| Base 6 | 1526 | 1556 |
| Base 7 | 1257 | 1317 |
| Base 8 | 1048 | 1078 |
| Base 9 | 759 | 789 |
| Base 10 | 6810 | 7110 |
| Base 11 | 6211 | 6511 |
| Base 12 | 5812 | 5b12 |
| Base 13 | 5313 | 5613 |
| Base 14 | 4c14 | 5114 |
| Base 15 | 4815 | 4b15 |
| Base 16 | 4416 | 4716 |