Prime No.

- Program for Prime Number Generation

#include<stdio.h> 
main()
{
 int n,i=1,j,c;
 clrscr();
 printf("Enter Number Of Terms");
 printf("Prime Numbers Are Follwing");
 scanf("%d",&n);
 while(i<=n)
 {
   c=0;
   for(j=1;j<=i;j++)
   {
     if(i%j==0)
     c++;
    }
    if(c==2)
    printf("%d ",i);
    i++;
 }
 getch();
}

Output-------->

---------------- - Program to findout all Prime Number between 1 to 100.

#include<stdio.h>
void main()
{
  int i,num=1;
  clrscr();

  while(num<=100)
  {
   i=2;
   while(i<=num)
   {
    if(num%i==0)
    break;
    i++;
   }
   if(i==num)
   printf(" %d",num);
   num++;
 }  
  printf(" all are Prime");
  getch();
}

Output-------->