287933domain: NPropertiesPrimalityPrimeyesAppears in sequencesSmallest beastly prime in base n: smallest prime p with a base-n expansion containing the substring 666.at n=29A286342Primes that can be generated by the concatenation in base 6, in descending order, of two consecutive integers read in base 10.at n=28A287307Prime numbersat n=25060