73079domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumbers m such that m mod k is k-1 for all k = 2..9.at n=28A166931n-th prime that begins with prime(n).at n=20A229206Numbers k such that (5*10^k + 211)/9 is prime.at n=20A295970Prime numbersat n=7227