Embedly Problem 1

gistfile1.java

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package embedly;

import java.math.BigInteger;

/**
 *
 * @author ksiegfried
 */
public class Embedly {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        for(long i = 0; i < 2048; i++){
            BigInteger n = fact(i);
            long rval = rval(n);
            System.out.printf("Index %d Rval %d\n",i,rval);
            if(rval == 8001){
                return;
            }
        }
    }
    
    
    static long rval(BigInteger input){
        String asString = input.toString();
        long accumulator = 0;
        for(int i = 0; i < asString.length(); i++){
            accumulator += Long.parseLong(Character.toString(asString.charAt(i)));
        }
        return accumulator;
    }
    static BigInteger fact(long n){
        BigInteger accumulator = BigInteger.ONE;
        BigInteger factVal = BigInteger.valueOf(n);
        for(long i = 1; i <=n; i++){
            accumulator = accumulator.multiply(BigInteger.valueOf(i));
        }
        return accumulator;
    }
}