295247domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumbers that are the sum of 7 positive 10th powers.at n=30A004807Least prime p such that p-2 has n divisors, or 0 if no such prime exists.at n=21A167675Primes of the form 5*k^2 + 2, k >= 0.at n=30A201481Primes among "orderly" Friedman numbers A080035.at n=25A252483Prime numbersat n=25634