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2023 AMC 10B Question 15

AMC10 · 2023 AMC 10B

Question 15

What is the least positive integer $m$ such that $m \cdot 2! \cdot 3! \cdot 4! \cdot 5! \cdots 16!$ is a perfect square?
  1. $30$
  2. $30030$
  3. $70$
  4. $1430$
  5. $1001$