两道Prep 题，请帮忙解释一下：）

Ques１: If the prime numbers p and t are the only prime factors of the integer m, is m a multiple of p^2t?
(1) m has more than 9 positive factors.
(2) m is a multiple of p^3.

Ques 2: The function f is defined for all positive integers n by the following rule: f(n) is the number of positive integers each of which is less than n and has no positive factor in common with n other than 1. If p is any prime number, then f(p)=

A) p – 1 B) p – 2 C) p+1 / 2 D) p-1 / 2 E) 2

第一题，不明白，为什么(1)不行。

第二题，实在是没看明白NN的解释。

1. 如果m=3*5^4; p=3,t=5;则为否;

2.F等于 比N小的并且和N没有公因子(除了1之外)的正整数的个数,答案是A吧

真是精辟啊，懂了懂了。

尤其是第一道题，我没留意more than

第二题，看了你的翻译就晓得了。

多谢、多谢啊：）

祝考试顺利！