扫描二维码，直接登录
题库 / Prep2007E1-DS-169
If the integers a and n are greater than 1 and the product of the first 8 positive integers is a multiple of an, what is the value of a ?
(1) an = 64
(2) n = 6
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）。
8!是a^n的倍数
1）a^n=64 ； a= 2/4/8
2) n=6 考虑到8！里面分解质因子=2^7*3^2*5*7 只有2有超过了6的次数，所以a肯定是2。
不太了解first 8 positive integers存在什么意思啊？
前8个正整数
即：1*2*3*4*5*6*7*8
从1到8这八个数就是前八个正整数
登录 或 注册 后可以参加讨论