Question 22
What is the least number of integers that must be selected from $\{1,2,3,\ldots,57,58\}$ to guarantee that one selected number is divisible by another selected number?
Selections are of distinct list entries, without replacement.
Answer format: enter one whole number without units. The printed paper uses four answer-sheet digits with leading zeros when needed; ordinary numeric entry is used here.
Selections are of distinct list entries, without replacement.
Answer format: enter one whole number without units. The printed paper uses four answer-sheet digits with leading zeros when needed; ordinary numeric entry is used here.