[求助]PREP-DS-169应该是很简单的一题，不过不懂题意。。。

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

【答案】B

这题看了半天没有懂题意，蓝色部分有什么用？

从1到8的乘积是 a^n的倍数

1*2*3*4*5*6*7*8=2^6 *3 *5 *7

可以得出n=6