Check whether entered number is prime or not.....
#include<iostream.h>
#include<conio.h>
void main()
{
//clrscr();
int number,count=0;
cout<<"ENTER NUMBER TO CHECK IT IS PRIME OR NOT ";
cin>>number;
for(int a=1;a<=number;a++)
{
if(number%a==0)
{
count++;
}
}
if(count==2)
{
cout<<" PRIME NUMBER \n";
}
else
{
cout<<" NOT A PRIME NUMBER \n";
}
getch();
}
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