192631domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes p that set a new record for the size of the smallest prime q such that q^(p-1) == 1 (mod p^2), i.e., such that p is a base-q Wieferich prime.at n=41A289379Primes of the form 398*x^2-1.at n=16A338476Prime numbersat n=17384