public String getAccountNumber() {
		for (int i = 0; i < 9; i++) {
			if (i == 0) {
				accountNumber = numbers[i].toString();
			} else {
				accountNumber += numbers[i].toString();
			}
		}
		
		if (amountOfPossibleNumbers > 1) {
			getMultipleAccountNumbers();
		} if (possibleAccountNumbers.length == 1) {
			accountNumber = possibleAccountNumbers[0];
		}
		
		return accountNumber;
	}