Number 2 is not a number but a potential state for next level. It is choosing vs not choosing. It becomes a reality after taking this action or measurement. Before the actual measurement, it is a potential or probability function of being and not being. After being, the number 2 becomes a single entity and together with earlier number, it becomes 2. After non being, the number 2 again becomes an separate entity and together with earlier numbers it becomes a 2. Without such happening [being or non being, but both is no possible in actuality], the concept of 2 is only a potentiality.

Number 5 is not a number but a potential state for next level.