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#include <stdlib.h>
#include <stdio.h>
# include<math.h>
void is_prime(int n)
{
int i = 2;
while (i <= sqrt(n))
{
if (n%i == 0)
{
printf("\n %d\n", n);
break;
}
i++;
}
if(i > sqrt(n))
printf("\n %d\n", n);
}
int main()
{
int a = 9;
is_prime(a);
return 0;
}