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Excel ISNUMBER function

The ISNUMBER function checks whether a value is a number. If the given value is a number, it returns TRUE. Otherwise, it returns FALSE.

Syntax

=ISNUMBER(value)

Arguments

Value (required): The value you want to check. It can be entered as one of the following:
-- A cell reference;
-- A formula;
-- A hardcoded value.

Remarks

1. It returns one of the following logical values:
-- TRUE: Returns TRUE If the given value is a number.
- - FALSE: Returns FALSE if the given value is non-numeric.
2. If a cell contains a formula, this function checks the result of the formula.

Return value

It returns a logical value, which is TRUE or FALSE.

Example

To find which cell is numeric in the table below, you can do as follows.

Select a cell, for example C6, enter the formula below and press the Enter key to get the first result. Select this result cell and then drag its AutoFill Handle down to get the rest of the results.

=ISNUMBER(B6)


Excel ISNONTEXT function
The ISNONTEXT function checks whether a value is non-text and returns a logical value of TRUE or FALSE.

Excel ISTEXT function
The ISTEXT function checks whether a value is a text.

Excel ISREF function
The ISREF function checks whether a given value is a reference.

Excel ISODD function
The ISODD function checks whether a value is an odd number.

Excel ISBLANK Function
The ISBLANK function returns TRUE if a cell is empty or blank and FALSE otherwise.

Excel ISERR Function
The ISERR function returns TRUE for any error type (except #N/A) and FALSE otherwise.


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