Hàm Kiểm Tra Số Nguyên Tố - Gists · GitHub

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kayladot7/C++ xây dựng Hàm Created March 25, 2020 16:52 Show Gist options

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Learn more about clone URLs Clone this repository at <script src="https://gist.github.com/kayladot7/1efa3823871fb4e822ae489fc7f22fc9.js"></script> Save kayladot7/1efa3823871fb4e822ae489fc7f22fc9 to your computer and use it in GitHub Desktop. Download ZIP hàm kiểm tra số nguyên tố Raw C++ xây dựng Hàm This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode characters Show hidden characters

#include<iostream>

using namespace std;

// Neu n la so nguyen to thi tra ve True, nguoc lai False

bool Kiem_Tra_So_Nguyen_To(int n)

{

if(n < 2)

{

return false;

}

else

{

if(n == 2)

{

return true;

}

else

{

if(n % 2 == 0)

{

return false;

}

else

{

for(int i = 2; i < n; i++)

{

if(n % i == 0)

{

return false;

}

}

}

}

}

return true;

}

int main()

{

int n;

cout << "\nNhap gia tri n: ";

cin >> n;

// bool kiemtra = Kiem_Tra_So_Nguyen_To(n);

if(Kiem_Tra_So_Nguyen_To(n) == true)

{

cout << n << " la so nguyen to" << endl;

}

else

{

cout << n << " ko la so nguyen to" << endl;

}

return 0;

}

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