ISNUMBER (Returns TRUE if the value is a number)

What Does It Do?

This function examines a cell or calculation to determine whether it is a numeric value.

If the cell or calculation is a numeric value the result TRUE is shown.

If the cell or calculation is not numeric, or is blank, the result FALSE is shown.

Syntax

=ISNUMBER(CellToTest)

The cell to test can be a cell reference or a calculation.

Formatting

No special formatting is needed.

Example

The following table was used by a personnel department to lookup the salary of an employee.

The employee can be entered as a Name or as a Numeric value.

The =ISNUMBER() function has been used to identify the type of entry made, and then

the =IF() decides which VLOOKUP to perform.