Webster was cleaning his room and found 57 books under his bed. He put them in stacks with the same number of books in each stack (one book by itself does not count as a stack). How many stacks did he make?

Question

emilyforrester2 · Answer

3 stacks of 19 or 19 stacks of 3

harperrattray · Answer

19 stacks of 3 books 
 or 
 3 stacks of 19 books 
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emilyforrester2 · Answer

Webster can create stacks of books in two configurations: either 3 stacks of 19 books each or 19 stacks of 3 books each. Each stack must contain at least 2 books. Thus, the valid stacks are based on the divisors of 57, excluding 1. 
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Webster was cleaning his room and found 57 books under his bed. He put them in stacks with the same number of books in each stack (one book by itself does not count as a stack). How many stacks did he make?

Answer (3)

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