51631

Properties

Appears in sequences

• Numbers having four 7's in base 9.at n=24A043484
• Primes with 15 as smallest positive primitive root.at n=18A061328
• Primes for which the smallest positive primitive root is odd and nonprime.at n=26A070269
• List of Ormiston prime pairs.at n=33A072274
• Prime sequence overlaying the central digits of prime numbers. If possible, the value is greater than the previous one. Zero if no such embedding is possible.at n=37A133781
• Numbers k such that 7^k + k^7 - 1 is prime.at n=7A215445
• a(n) = smallest prime q > a(n-1) such that 2*prime(n)*q^prime(n)+1 is also prime.at n=19A225747
• Prime numbersat n=5284