704761

Properties

Appears in sequences

• Primes of form (p^x - 1)/(p^y - 1), p prime.at n=38A003424
• Prime numbers that are the sum of the divisors of some n.at n=31A023195
• Primes of the form p^2 + p + 1 when p is prime.at n=20A053183
• Terms of A000203 that are prime.at n=33A062700
• Primes that can be written as 1+p+p^k, p prime and k > 1.at n=39A084444
• Primes of the form 1+(1+p)*p^e, p prime and e>0.at n=35A087196
• Primes p of the form sigma(2k-1) for a number k.at n=25A247837
• Primes q of the form sigma((p + 1) / 2) where p is a prime.at n=17A292448
• Primes of the form (p^k)^2 + p^k + 1 with prime p and positive integer k.at n=23A342691
• Primes that are perimeter^2 + hypotenuse^2 of a Pythagorean triple.at n=18A391598
• Prime numbersat n=56905