81163domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrime numbers ending in the prime number 163.at n=22A167627Primes formed by concatenating k and 2k+1.at n=30A309808a(n) is the least nonnegative integer k such that the 2-valuation of 3^k+5 is n, or -1 if no such number exists.at n=17A368350Prime numbersat n=7944