29423041domain: NPropertiesPrimalityPrimeyesAppears in sequencesLargest prime factor of 5^n + 1.at n=16A074478Greatest prime factor of n^8+1.at n=24A240551Odd prime factors of generalized Fermat numbers of the form 5^(2^m) + 1 with m >= 0.at n=19A273946Prime numbersat n=1824252