The ornamental design for a lottonumberselector, as shown and described.
FIG. 1 is a top, front and side perspective view of the lotto number
selector showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is an end elevational view thereof, all elevational views being
similar to FIG. 3 except for length, with side elevational views being
longer than end elevational views; and,