Smallest Integer multiplication to floating number which convert it to natural

We need to find the Integer Multiplier to convert a floating number to Natural.

Input : 1.66

Output : 50

Input : 0.25

Output : 4

public class MinMulToMakeNatural {

     /**

      * Get Minimum multiplier to make Natural.

      * @param number

      * @return min mult.

      */

     private static int getMinMultiplier(float number) {

           char[] array = (number+"").toCharArray();

          

           int len = array.length;

           int numerator = array[0]- '0';

           int count = 0;

          

           boolean flag = false;

           for (int i = 1 ; i <= len-1; i++) {

                if('.'==array[i]) {

                     flag= true;

                     continue;

                }

               

                if(flag) {

                     count++;

                }

               

                int val = array[i] - '0';

                numerator = numerator * 10 + val;

           }

          

           int denominator = (int)Math.pow(10,count);

          

           int gcd = getGCD(numerator,denominator);

          

           return denominator/gcd;

     }   

    

     /**

      * @param numerator

      * @param denominator

      * @return GCD

      */

     private static int getGCD(int numerator, int denominator) {

          

           int gcd = denominator==0?numerator:

                getGCD(denominator, numerator%denominator);

          

           return gcd;

     }

     /** Main method. */

     public static void main(String[] args) {

           float number = 1.66F;

          

           int min = getMinMultiplier(number);

          

           System.out.println("Minimum Integer Multiplier# "+min);

     }

}