91873domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form 3*m^2 - 2.at n=27A201715Primes equal to a heptagonal number plus 1.at n=39A285791Primes p such that the sum of digits of 11*p is 11.at n=15A357935Prime numbersat n=8877