watercolor supplies

By admin  

Algebra Question please help me it’s not hard but I’m in a rush?

Question:A math teacher hands out an entire inventory of art supplies, listed at the bottom.
Paintbrushes:120
boxes of markers:78
packs of paper:24
sets of watercolors:54

Each class gets the same number of each item. What is the greatest number of classes that can receive supplies?

how many classes are there?