Justin has 20 pencils 25 erasers and 40 paper clip he organized them into groups with the same number of item of each group. all the items in a group will be the same type. how many items can he put in each group?

Why can't my rank go i have 1723 points, but my rank is only at ambitious, which is only 250 points! like, (p.s. i know this isn't related to math, but i just don't know why it's doing this and i would really appreciate if someone could tell me whats going on with this)