Prime Number or Not

#include<stdio.h>
void main()
{
int n;
printf("Please enter any number: ");
scanf("%d", &n);
for(int i=n-1;i>1;i--)
{
if(n%i==0)
{
printf("its not a prime number\n");goto level;
         }


}
for(int i=n-1;i>1;i--)
{
if(n%i!=0)
{
printf("its a prime number\n");goto level;
         }
}
level:
printf("finish.....\n");
}