import java.util.*;

public class Main {
    
    public static void main(String[] args) throws Exception {
        
        Scanner sc = new Scanner(System.in);
        int T = sc.nextInt();
        for( int i = 0; i < T; i++ ) {
            long N = sc.nextLong();
            System.out.println(isqrt(N));
        }
        
    }
    
    static long isqrt(long N) {
        
        long low = 0;
        long high = N+1;
        long mid = (low+high)/2;
        while( low < high ) {
            mid = (low+high)/2;
            if( mid*mid <= N ) {
                low = mid+1;
            }else {
                high = mid;
            }
        }
        
        return low-1;
        
    }
    
}