『求解』问两道题目

safarima1987 · 发表于 2012-6-20 19:34:21

1. For every positive even integer n, the function h(n) is defined to be the product of all the even integers from 2 to n, inclusive. If p is the smallest prime factor of h(100)+1, then p is
a.   Between 2 and 10
b.   Between 10 and 20
c.   Between 20 and 30
d.   Between 30 and 40
e.   Greater than 40

2. Is the integer n odd?
(1)   N is divisible by 3
(2)   2n is divisible by twice as many positive integers as n

第二题的第二个条件是指可以整除2n的数字的个数是可以整除n的数字的个数的两倍，对吗？

谢谢。

『求解』问两道题目

所属分类: GMAT考试

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