Write a C Program to Find Whether the Given Number is Prime Number

Exercise – 4 Control Flow - II

a)Write a C Program to Find Whether the Given Number is Prime Number

program:-

#include<stdio.h>

void main()

{

                int n,i,c=0;

printf("enter a number to check if it is a prime");

scanf("%d",&n);

for(i=1;i<=n;i++)

{

                if(n%i==0)          

                {

                                c=c+1;

                }

}

if(c==2)

printf("%d is a prime\n",n);

else

printf("%d is not a prime\n",n);

}