309541domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes with 18 as smallest positive primitive root.at n=13A061330The greater of twin primes p2 such that 2*p1 + p2 is a prime number (A174913) and also the lesser of other twin primes in A174913.at n=12A242773Prime numbersat n=26769