104743domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form 22*(n^2)+1.at n=28A117049Primes p such that p+1, p+2, p+3 and p+4 have equal number of divisors.at n=12A119728Largest prime factor of 78557*2^n + 1.at n=1A279798Prime numbersat n=10001