C Program to Generate First 50 Prime Numbers

A Prime Number is a positive integer greater than 1 which is divisible by 1 and itself. In other words, Prime number is a whole number greater than whose factors are 1 and itself. Examples of first few prime numbers are 2, 3, 5, 7, 11, 13..

In this C program, we are going to generate first 50 such prime numbers. Keep in mind that first prime number is 2 and which is only even prime number.

Program

#include<stdio.h>
#include<conio.h>

int main()
{
	 
	 int count=1, flag, i=2, j;
	 clrscr();
	 
	 /* Generating prime numbers */
	 printf("First 50 Prime Numbers Are: \n");
	 while(count <= 50)
	 {
		  flag = 0;
		  for(j=2; j <= i/2; j++)
		  {
			   if(i%j==0)
			   {
				    flag=1;
				    break;
			   }
		  }
		  if(flag==0)
		  {
			   printf("%d\t",i);
			   count++;
		  }
		  i++;
	 }
	 getch();
	 return(0);
}

Output of the above program :

First 50 Prime Numbers Are:
2    3     5    7    11   13   17   19   23   29
31   37    41   43   47   53   59   61   67   71
73   79    83   89   97   101  103  107  109  113
127  131   137  139  149  151  157  163  167  173
179  181   191  193  197  199  211  223  227  229