Answer Posted / oza priyanka

#include<stdio.h>
void main()
{
int num,i,cnt;
clrscr();
printf("\n\nEnter the number = ");
scanf("%d",&num);
for(i=2,cnt=0;i<num;i++)
{
if(num%i==0)
cnt=1;
}
if(cnt==0)
printf("\n\nprime number");
else
printf("\n\n not a prime number");
getch();
}

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