97523domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes that remain prime through 4 iterations of function f(x) = 2x + 7.at n=11A023305Prime numbers p such that 2*p+1, p*(p + 1) - 1 and p*(p + 1) + 1 are also primes.at n=25A136015Primes p such that p^9 - 1 has 16 divisors.at n=5A342065Prime numbersat n=9378