# Primary number

write a program to find the 100th or nth primary number?

March 20, 2012 at 3:28 PM

```import java.util.*;

public static void main(String a[]) {
Scanner input=new Scanner(System.in);
System.out.print("Enter N:");
int n=input.nextInt();
find(n);
}
static void find(int n){
int i=0,count=2;
if(n==1)
{
return;
}
if(n==2)
{
return;
}

while(true)
{
for(int j=2;j<=i/2;j++){
if(i%j==0)
break;
else if(j==i/2)
{
count++;
}
}
if(count==n)
{
System.out.println(n+"th prime = "+i);
break;
}
i++;
}
}
}
```

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