@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		Number other = (Number) obj;
		if (number == null) {
			if (other.number != null)
				return false;
		} else if (!number.equals(other.number))
			return false;
		if (operator == null) {
			if (other.operator != null)
				return false;
		} else if (!operator.equals(other.operator))
			return false;
		return true;
	}