77431domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes prime(k) for which A049076(k) = 4.at n=25A049080Primes p such that p+1, p+2, p+3 and p+4 have equal number of divisors.at n=7A119728Primes of the form 10n^2 - 9.at n=32A201964Prime numbers with prime indices in A333243.at n=28A333244Prime numbersat n=7607