Answer Posted / arafat buet

#include<stdio.h>
int main()
{
int i,n,r;
printf("enter any number:");
scanf("%d",&n);
if(n==1)
printf("not prime\n");
for(i=2;i<n;i++)
{
r=n%2;
if(r==0)
{
printf("\nnot prime\n");
break;
}
}
if(i==n)
printf("prime\n");
return 0;
}

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