Create a C program that will ask a user for a certain number and display all prime numbers from 1 to that number. using **while loop, for loop, and do while loop**
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- Create a C
program that will ask a user for a certain number and display all prime numbers from 1 to that number.
using
**while loop, for loop, and do while loop**
#include<iostream>
using namespace std;
int main()
{
int N, i, j, isPrime, n;
cout<<"Enter a number ";
cin>>N;
for (i=2; i<=N; i++)
{
isPrime=0;
for(j=2; j<=i/2; j++)
{
if(i%j ==0)
{
isPrime=1;
}
}
if(isPrime==0 && N!=1)
cout<<i<<" ";
}
return 0;
}
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