扫描二维码，直接登录
题库 / Prep2007E1-DS-206
If p is a positive integer, what is the value of p ?
(1) p/4 is a prime number
(2) p is divisible by 3.
Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
还没有题目讲解（毕出老师会陆续发布对官方考题的解读，请保持关注）。
（1）p/4是个质数，设质数为n，p=4n。（2）4n能被3整除，说明n是个能被3整除的质数。能被3整除的质数只能是3，3再往上翻倍就不是质数了。
登录 或 注册 后可以参加讨论