2. 外语
  3. Which of the following CANNOT be expressed as the product of exactly 3 consecutive positive integers?

Which of the following CANNOT be expressed as the product of exactly 3 consecutive positive integers?

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问题 Which of the following CANNOT be expressed as the product of exactly 3 consecutive positive integers?
选项 A、6
B、60
C、24×3×7
D、23×3×5×7×11
E、23×5×11×13
答案E
解析 由于三个连续正整数的乘积必然为6的倍数，选项E中没有因子3，因此E必然不能够表示为三个连续正整数的乘积。
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