It was a career-high for the freshman Francis, who was a perfect 7 of 7 from the floor.
Green Bay (18-5, 7-2 Horizon) scored the first seven points of the game, built a 16-3 lead in the first 5 1/2 minutes and led 37-25 at the break.
Justin Mitchell made 1 of 2 from the line with 15:33 left to draw Wright State within nine, but that's the closest the Raiders got in the second half.
Francis' dunk - off a steal by Carrington Love - pushed the lead over 20, 69-46, with 5:26 left.
Michael Karena led Wright State (11-12, 3-6) with 17 points and eight rebounds.