711727domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes that are a concatenation of 7, 11 and a prime.at n=30A101250Primes p such that the polynomial k^4 + k^3 + k^2 + k + p yields only primes for k = 0...6.at n=21A247966Prime numbersat n=57437