There are 6 bookshelves in the library, each with 4 floors, and 73 books on each floor. How many books are there?
图书室有6个书架，每个书架有4层，每层放73本书．一共有多少本书？
<gadget id="calculator">73 * 4 * 6</gadget>
<output>1_752</output>

<result>1_752</result>