Move the value of all cells in a column to their corresponding excel row number

Question

Let's say i have the below list of Whole numbers in Column A. If you observe the list of numbers, you will see that number "5" and 6 is missing.

A
3
2
4
1
7
8

what I want to achieve is to place (sort) the numbers on the column such that each cell value will take its position according to excel row numbering. which means:

I should have something like this

1
2
3
4


7

Answer 1

If it's as simple as stated, this should work.

In column B, say:

=IF(COUNTIF(A:A,ROW())>0,ROW(),"")

Note: It does not account for duplicates, or anything complicated really.

Further Note: To clarify, all this does is check if the row that the formula is in, is in column A. If it is, then it returns the current row.