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## 题目描述

I'll give you a number , please tell me how many different prime factors in this number.

## 输入

There is multiple test cases , in each test case there is only one line contains a number N(2<=N<=100000). Process to the end of file.

## 输出

For each test case , output one line contains one number , indicating different prime factor in the number N.

## 样例输入

12
5
30

## 样例输出

2
1
3


12 = 2 * 2 * 3

5 = 5

30 = 2 * 3 * 5

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