Write a program for prime numbers between 1 to 100.

 #include<stdio.h>  
 #include<conio.h>  
 int main()  
 {  
 int num,i,count;  
 for(num = 1;num<=100;num++)  
 {  
  count = 0;  
   for(i=2;i<=num/2;i++)  
   {  
   if(num%i==0)  
   {  
    count++;  
    break;                     
     }  
    }  
    if(count==0 && num!= 1)  
     printf("%d ",num);  
     }  
    return 0;  
 }  
 Output:  
 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