331081domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes base 10 that remain primes in six bases b, 2<=b<=10, expansions interpreted as decimal numbers.at n=26A052028Primes whose representation in base (2), base (3), base (4) and base (5) are also prime when read in decimal.at n=4A236512Prime numbersat n=28490