99809domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes p such that 32p+1 and (p-1)/32 are both prime.at n=8A086476Primes that become squares when prefixed with a 1.at n=9A167734Primes having only {0, 8, 9} as digits.at n=21A385772Prime numbersat n=9575