"Pfoertner, Hugo" <Hugo.Pfoertner at muc.mtu.de> wrote: :The obvious generalization: : :Smallest prime with n "69"s in its decimal representation: : :2, 269, 69691, 1696969, 269696969, 56969696969, 1696969696969, Er, 2, 269, 62969, ... :base,dumb of course How dumb am I, to have checked ... Hugo V.