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Formulas > =ISNUMBER()

How To Use ISNUMBER() Function in Google Sheets

Description

<div>Checks whether a value is a number.<br><br><strong>Common Questions about the ISNUMBER Formula:</strong><br>• What is the syntax of the ISNUMBER formula?<br>• How can the ISNUMBER formula be used to identify specific data types?<br>• How can the ISNUMBER formula be used to align data in cells?<br>• What is the result of the ISNUMBER formula?<br><br><strong>How can the ISNUMBER formula be used appropriately:</strong><br>• To identify if a cell contains a numeric value <br>• To determine if a data range is composed entirely of numeric values<br>• To align data by forcing one data type into a specific cell pattern<br><br><strong>How can the ISNUMBER formula be commonly mistyped:</strong><br>• Using ISNAR instead of ISNUMBER <br>• Using ISTEXT instead of ISNUMBER <br>• Forgetting to include the parenthesis at the end of the formula<br>• Also mistyped as INNUMBER, INSUMBER, ISNUMBR, ISNUMBRE.<br><br><strong>What are some common ways the ISNUMBER formula is used inappropriately:</strong><br>• Using the formula to identify Boolean data types <br>• Using the formula to force alpha-numeric data into a numeric cell <br>• Using the formula to identify strings instead of numbers<br><br><strong>What are some common pitfalls when using the ISNUMBER formula:</strong><br>• Trying to force a text string into a numeric cell without first validating it <br>• Mistakenly using the ISNUMBER formula to identify Boolean data types<br><br><strong>What are common mistakes when using the ISNUMBER Formula:</strong><br>• Errors in syntax <br>• Incorrect reference to a cell or range <br>• Using the wrong data type formula (ISTEXT, ISBOOLEAN, etc)<br><br><strong>What are common misconceptions people might have with the ISNUMBER Formula:</strong><br>• Thinking that the ISNUMBER formula can return a Boolean value<br>• Believing that the ISNUMBER formula can force text strings into numeric data cells&nbsp;<br>• Not understanding the syntax of the formula and its proper usage</div>

How To Actually Use ISNUMBER() in Sheets

<pre>ISNUMBER(value)</pre>
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