PREP2-184，要考了，大家帮帮忙吧

rock19840717 · 发表于 2008-9-29 09:25:00

If k is an integer greater than 1, is k equal to 2^r for some positive integer r ?

(1) k is divisible by 2^6

(2) k is not divisible by any odd integer greater than 1.

请问条件1为何不能回答，答案是B，我认为条件1计算后r》＝6啊

remona9t · 发表于 2008-9-29 11:17:00

(1) k is divisible by 2^6

if K=2^6*3 then K is also divisible by 2^6

doesnt mean that K equals to 2^r

rock19840717 · 发表于 2008-9-29 12:18:00

哎，傻了，谢谢LS，当时就是没转过湾

PREP2-184，要考了，大家帮帮忙吧

PREP2-184，要考了，大家帮帮忙吧

所属分类: GMAT考试

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