| Twin primes | (p, p + 2) are both prime. |
| Prime triplets | (p, p + 2, p + 6) or (p, p + 4, p + 6) are all prime. |
| Prime quadruplets | (p, p + 2, p + 6, p + 8) are all prime. |
| Cousin primes | (p, p + 4) are both prime. |
| Sexy primes | (p, p + 6) are both prime. |
| Form 3n+1 | Of the form . |
| Form 4n+1 | Of the form . |
| Form 4n+3 | Of the form . |
| Emirp | Reversible primes |
| Euler prime numbers | Of the form . |
| Mersenne primes | Of the form . |
| Euclid primes | Of the form . |
| Primorial primes | Of the form . |
| Fermat primes | Of the form . |
| Factorial primes | Of the form n! − 1 or n! + 1 . |
| Double factorial primes | Of the form n!! − 1 or n!! + 1 . |
| Sophie Germain primes | p and 2p + 1 are both prime . |
| Safe primes | p and (p - 1) / 2 are both prime . |
| Left-truncatable primes | |
| Right-truncatable primes | |
| Two-sided primes | |
| Wilson primes | p2 divides (p − 1)! + 1 . |
| Super primes | p-th prime |
| Odd primes | Of the form . |