# A to Z of Excel Functions: The ISODD Function

12 July 2021

*Welcome back to our regular A to Z of Excel Functions blog. Today we look at the ISODD function. *

**The ISODD function**

At the time of writing, there are 12 **IS** functions, *i.e.* functions that give rise to a TRUE or FALSE value depending upon whether a certain condition is met:

**ISBLANK(reference):**checks whether the**reference**is to an empty cell**ISERR(value):**checks whether the**value**is an error (*e.g. #REF!, #DIV/0!, #NULL!*). This check specifically excludes*#N/A***ISERROR(value):**checks whether the**value**is an error (*e.g. #REF!, #DIV/0!, #NULL!*). This is probably the most commonly used of these functions in financial modelling**ISEVEN(number):**checks to see if the**number**is even**ISFORMULA(reference):**checks to see whether the**reference**is to a cell containing a formula**ISLOGICAL(value):**checks to see whether the**value**is a logical (TRUE or FALSE) value**ISNA(value):**checks to see whether the**value**is*#N/A*. This gives us the rather crude identity**ISERR + ISNA = ISERROR****ISNONTEXT(value):**checks whether the**value**is not text (*N.B.*blank cells are not text)**ISNUMBER(Value):**checks whether the**value**is a number**ISODD(number):**checks to see if the**number**is odd. Personally, I find the number 46 very odd, but Excel doesn’t**ISREF(value):**checks whether the**value**is a reference**ISTEXT(value):**checks whether the**value**is text.

As stated above, the **ISODD **function checks whether a number is odd. It has the following syntax:

**ISODD(number)**

The **ISODD** function has the following argument:

**number:**this is required and represents the**number**for which you wish to determine whether it is odd. If**number**is not an integer, it is truncated (*i.e.*not rounded, simply ended).

It should be further noted that:

- if
**number**is nonnumeric,**ISODD**returns the*#VALUE!*error value.

Please see my example below:

*We’ll continue our A to Z of Excel Functions soon. Keep checking back – there’s a new blog post every business day.*

A full page of the function articles can be found here.