题库搜索>数据充分DS-14998
How many factors does x have, if x is a positive integer?
(1) x=pn , where p is a prime number.
(2) nn=n+n , where x is a positive integer.
分析A选项
分析B选项
分析C选项
分析D选项
分析E选项
完善解答 
暂无雷哥网文字解析
我一定能杀G成功
指数的底数不可以为0，下面说n=0的不太对。n=2可以。
0
0
回复
2022-09-29 12:02:11
zhbzhb
（1）单独无法求解，但是能够了解到x的表达式是什么，并得知x的factors＝n+1；（2）没有与x相关的内容所以同样没法单独求解，但是通过表达式能够得出n=0；（1）与（2）结合能够得出x的factors＝n+1且n=0，故可以求解。
0
0
回复
2022-09-04 00:10:05
丢
由条件1得出X的factor有n+1个，因为n未知，所以不充分
由条件2得出n=2，但不知n与x的关系，不充分
两者结合x为一个prime number的平方，则x的factor为1，p，p的平方，选C
0
0
回复
2022-02-25 19:16:06
正在加速小流星
1和2各自不充分 根据条件1+2，n=0或者2 当n=2时，假设p=17，x=17^2=17*17*1, x有三个因数， 当n=0时，假设p=17,x=17^0=1, 这时x有1个因数 所以为啥E是错的？
0
0
回复
2022-01-25 15:49:48
185035cctz
问了老师，这个题是错的，第2个条件应该是nⁿ=n+n, 那么n只能等于2，因为0的0次没有意义，所以1+2条件充分。
0
0
回复
2021-10-12 14:21:32
Litchichi
以为条件2中的 x 写错，实际是对的。而条件2的目的就是为了算出条件1中的 n，只要确认 n = 2，且，根据条件1的信息，在确认 p = 质数的前提下，则 x = (p^2) 可根据因数的计算得出 x 的因数数量 = 2 + 1 = 3.
0
0
回复
2020-12-16 20:32:25
Tomson
n怎么会是等于1或0？不应该是2或0吗？
0
0
回复
2019-01-15 19:11:03
诶呀
题目没有问题吗，最后一个条件是不是应该n is a positive integer.
0
0
回复
2018-09-08 15:45:40
诶呀回复诶呀
哦哦，好像不管n=0还是1，factor都是1
0
0
回复
2018-09-08 15:47:37
科目：
数据充分DS
来源：
Manhattan
题目信息1m19s
平均耗时
65.7%
平均正确率
该题由网友esfP7xx提供
点击上传数据充分DS -18358
Did the population of Town C increase by at least 100 percent from the year 2000 to the year 2010 ?(1)The population of Town C in 2000 was 2/3 of the population in 2005.(2)The population of Town C increase by a greater number of people from 2005 to 2010 than it did from 2000 to 2005
数据充分DS -18269
At a certain clothing store, customers who buy 2 shirts pay the regular price for the first shirt and a discounted price for the second shirt. The store makes the same profit from the sale of 2 shirts that it makes from the sale of 1 shirt at the regular price. For a customer who buys 2 shirts, what...
数据充分DS -18267
What is the volume of the right circular cylinder X ?(1) The height of X is 20.(2) The base of X has area 25π.
数据充分DS -18265
What is the value of z in the figure above?(1) x = 50(2) y = 35
数据充分DS -18264
If all of the six faces of a concrete block are rectangular, what is the volume of the block?(1) Each of the four lateral faces of the block has an area of 200 square inches.(2) The top of the block is square and has an area of 400 square inches.
数据充分DS -18358
Did the population of Town C increase by at least 100 percent from the year 2000 to the year 2010 ?(1)The population of Town C in 2000 was 2/3 of the population in 2005.(2)The population of Town C increase by a greater number of people from 2005 to 2010 than it did from 2000 to 2005
数据充分DS -18269
At a certain clothing store, customers who buy 2 shirts pay the regular price for the first shirt and a discounted price for the second shirt. The store makes the same profit from the sale of 2 shirts that it makes from the sale of 1 shirt at the regular price. For a customer who buys 2 shirts, what...
数据充分DS -18267
What is the volume of the right circular cylinder X ?(1) The height of X is 20.(2) The base of X has area 25π.
数据充分DS -18265
What is the value of z in the figure above?(1) x = 50(2) y = 35
数据充分DS -18264
If all of the six faces of a concrete block are rectangular, what is the volume of the block?(1) Each of the four lateral faces of the block has an area of 200 square inches.(2) The top of the block is square and has an area of 400 square inches.
分享
周末、晚班滚动开班 
24+35+35+6课时 
