16666669domain: NPropertiesPrimalityPrimeyesAppears in sequencesSmallest prime containing exactly n 6's.at n=6A037065a(n) = smallest prime that can be written in base 10 using just n n's.at n=6A069569Primes with exactly six 6's.at n=0A178555Smallest prime using the digit n exactly n times.at n=5A178559Prime numbersat n=1071206