OpenStax, Contemporary Mathematics §3.1 Prime and Composite Numbers · Example 19 · Number Theory · Prime numbers

Prime and Composite Numbers · Example 19

Suppose you want to organize books onto shelves, and you want the shelves to hold the same number of books. Each shelf will only contain one genre of book. You have 24 sci-fi, 42 fantasy, and 30 horror books. How many books can go on each shelf?

~5 minWritten answer · compare with the solution

OpenStax, Contemporary Mathematics · §3.1 Prime and Composite Numbers · Example 19

Stuck? A gentle nudge

No hints for this one.

Something off?

Workspace

Your working

Check your full solution

Upload photos of your handwritten work or a PDF, and Lemma will read it and tell you whether it's right — and where it first goes wrong if not.