C++ Programming Code Examples
C++ > Mathematics Code Examples
List Prime Numbers Program
/* List Prime Numbers Program
A prime number (or a prime) is a natural number greater than 1 that has no positive divisors other than 1 and itself.
for example,
5 is prime, as only 1 and 5 divide it. */
#include<iostream>
#include<conio.h>
#include<math.h> // Math.h For sqrt function
using namespace std;
int main() {
// Variable Declaration
int n;
// Get Input Value
cout << "Enter the Number :";
cin>>n;
cout << "List Of Prime Numbers Below " << n << endl;
//for Loop Block For Find Prime Number
for (int i = 2; i < n; i++)
for (int j = 2; j * j <= i; j++) {
if (i % j == 0)
break;
else if (j + 1 > sqrt(i)) {
cout << i << endl;
}
}
// Wait For Output Screen
getch();
return 0;
}
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