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Answer to Question #56504 in C++ for Nithya

Question #56504
Write a program that asks the user to enter a positive number then displays all numbers less or equal to it that are prime each one a separate line.
Expert's answer
#include <iostream>
#include <math.h>
#define N 10

using namespace std;

bool isPrime(int k)
{
int i;
for(i=2;i*i<=k;i++)
if(k%i==0)
return false;
return true;
}

int main(int argc, char **argv)
{
int n;
cout<<"Input number: ";
cin>>n;
cout<<"Prime numbers: \n";
int k;
for(k=1;k<=n;k++)
if(isPrime(k))
cout<<k<<endl;
return 0;
}

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