72871domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of form 210*p + 1 where p is a prime.at n=33A051648Numbers k such that (30^k - 1)/29 is prime.at n=7A098438Primes q such that 15*q-4, 15*q-2, 15*q+2 and 15*q+4 are all primes.at n=22A342717Prime numbersat n=7203