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标题: 弱弱的请教下 [打印本页]

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作者: pillarxu    时间: 2009-5-22 15:50
标题: 弱弱的请教下

昨天做prep的时候遇到一道题看不懂题目： 2n is divisible by twice as many positive integers as n.

是一道数据充分题的条件  问能不能确定n是odd？ 

哪位好心的童鞋帮忙看一下啊  谢谢

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作者: georgelhb    时间: 2009-5-22 16:18
2n能够被两倍于n的正整数整除

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作者: pillarxu    时间: 2009-5-22 19:46
thank you for your time~ i appreciate it

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