prime no.

 #include <stdio.h>


int main() {

    int  i , n ,counter ;

    printf(" prime check : ");

    scanf("%d",&n);

    counter = 0;

    for (i=2 ; i < n; i++){

        if (n%i==0){

            counter=counter+1;

        }

        else if(n%i!=0){

          counter=counter+0; 

        }

    }

    if(n==1){

        printf(" it is not prime\n");

        

    }

    else if (counter>0){

        printf(" it is not prime\n");

    }

    else if (counter == 0){

        printf(" it is prime\n");

    }

     

    

    printf("%d",counter);

    

    

    

    return 0;

}

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