Divisibility of Repeated String

import java.io.*;
import java.util.*;

public class Solution {
    public static void main(String[] args) throws IOException {
        Scanner bufferedReader = new Scanner(System.in);
        System.out.println("Enter dividend string");
        String s = bufferedReader.nextLine();
        
        System.out.println("Enter divisor string");
        String t = bufferedReader.nextLine();
        
 

        int result = Result.findSmallestDivisor(s, t);
          System.out.println(result);
    }
}


class Result {

    /*
     * Complete the 'findSmallestDivisor' function below.
     *
     * The function is expected to return an INTEGER.
     * The function accepts following parameters:
     *  1. STRING s
     *  2. STRING t
     */

    public static int findSmallestDivisor(String s, String t) {
        
	if(s.length() % t.length() > 0)
		return -1;
	StringBuilder sb = new StringBuilder();
	for(int i=0;i*t.length() < s.length();i++) {
		sb.append(t);
	}
	if(!sb.toString().equals(s))
		return -1;
		
	int divisible = 1;
	
	for(int i=1;i<=t.length();i++) {
	    
	    //optimized solution for skipping a few unrequired iterations
	   if(t.length()%divisible++ != 0) {
	        continue;
	    }
	     
	     
		sb = new StringBuilder();
		String subStr = t.substring(0, i);
		while(sb.length() < t.length()) {
			sb.append(subStr);
		}
		if(sb.toString().equals(t))
			return i;
	}
	return -1;

    }

}