In that case, you’ll want to use the full version above.
For example, COLUMN(C5) returns 3, since C is the third column in the spreadsheet.
When no reference is provided, COLUMN returns the column number of the cell which contains the formula.
COLUMNS Function
The Excel COLUMNS function returns the count of columns in a given reference.
MIN Function
The Excel MIN function returns the smallest numeric value in the data provided.
The MIN function ignores empty cells, the logical values TRUE and FALSE, and text values.