CP: Display Prime numbers

Que:
Write a program that accepts a number from the user and prints prime numbers from 0 to that
number.

Ans: 

The prime number is a positive integer greater than 1 that is only divisible by 1 and itself. For example 2, 3, 5, 7, 11 are the first five prime numbers.

Code:

#include<stdio.h>

void main()

{

    int n,i,test,j;

   

    printf("Enter the Number=");

    scanf("%d",&n);

   

    printf("Prime Numbers are: \n");

   

    for(i=1; i<=n; i++)

    {

        test=0;

        for(j=1; j<=n; j++)

        {

            if(i%j==0)

                test++;

        }

        if(test==2)

            printf("%d " ,i);

    }

    getch();

}