Answer Posted / sachin 12

#include<stdio.h>
#include<conio.h>
void main()
{
int num,i=2,f=0,j;
printf("\n enter any number");
scanf("%d",&num);
a=num;
while(i<num)
{
if(num%i==0)
{
f=1
break;
}
i++;
}
if(f==i)
{
printf("\n the number is not prime");
}
else
{
printf(""\n the number is prime");
}
getch();
}

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