What is the greatest prime factor of(330-327)?

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问题 What is the greatest prime factor of(3³⁰-3²⁷)?

选项 A、3
B、17
C、13
D、2
E、0

答案C

解析 (3²⁰-3²⁷)=3²⁷(3³-1)=3²⁷×13×2，因此这个数的因子为2，3，13，最大因子当然是13。

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本试题收录于： GMAT QUANTITATIVE题库GMAT分类

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What is the greatest prime factor of(330-327)?

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成井费用通常按照()计算。

根据《建设工程安全生产管理条例》的规定，属于施工单位安全责任的是( )。

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已知二叉树后序遍历序列是CDABE，中序遍历序列是CADEB，它的前序遍历序列是()。

Hardly______theTV______theelectricitywascutoff.

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Woman:Iheardyou’removingtoNewYork.Man:Yes.【D1】Woman:Oh,that’sgreat!【D2】Man:Me,too.Let’skeepint

Woman:Iheardyou’removingtoNewYork.Man:Yes.【D1】Woman:Oh,that’sgreat!【D2】Man:Me,too.Let’skeepint

根据《建设工程安全生产管理条例》的规定，属于施工单位安全责任的是(　　)。

HardlytheTVtheelectricitywascutoff.