519121domain: NPropertiesPrimalityPrimeyesAppears in sequencesa(n) = (n!)^2 + n! + 1.at n=6A066142Primes of the form (n!)^2 + (n!) + 1.at n=4A162455Primes of the form 5n^3+6.at n=11A201175a(n) is the smallest prime factor in A030426(n).at n=25A325626Prime numbersat n=42994