【實用教育app】ToughNumbers|最夯免費app-綠色工廠好玩App

Want to give your mind a good stimulation ? Try solving some of these !! ToughNumbers is an App that tests the finer concepts of Number theory. It introduces you to questions from topics like Remainders, Factorials, LCM & HCF and provides an easy to use testing interface. Good problems are included , that have been carefully chosen to cover the important topics of Number theory.