ISNUMBER
The ISNUMBER function checks if a value is numeric. It returns TRUE if the value is a number and FALSE otherwise.
Example explanation
Cells C2 to C6 use the ISNUMBER function to check if the corresponding values in column B are numbers, returning TRUE or FALSE accordingly.
Syntax 🔗
=ISNUMBER(value)
value | The value that you want to check if it is a number or not. |
About ISNUMBER 🔗
Use the ISNUMBER function to check if a cell contains a numeric value. It returns TRUE if the cell is numeric and FALSE otherwise. This function is useful for validating data where numerical accuracy is important.
Examples 🔗
Suppose cell A1 contains the value '12345'. To check if this value is a number, enter the formula =ISNUMBER(A1). This returns TRUE because '12345' is numeric.
If you have entered 'Hello' in cell B1, use =ISNUMBER(B1) to check if 'Hello' is a number. This returns FALSE as 'Hello' is not numeric.
Notes 🔗
Use the ISNUMBER function to determine if a value is numeric. It does not distinguish between different types of numbers such as integers or decimals. For basic data validation, ISNUMBER is useful. For more specific number classification, consider using functions like ISINTEGER or ISDECIMAL.
Questions 🔗
No, ISNUMBER solely determines if a value is numeric or not. It does not classify between integers and decimals. If you need to specifically identify integers or decimals, you may consider using ISINTEGER or ISDECIMAL functions in Excel.
How does ISNUMBER handle text values that resemble numbers?ISNUMBER treats text values that appear to be numeric (e.g., '123') as non-numeric. It only evaluates true numerical values as numbers. Text values, even if they contain only digits, are considered non-numeric by ISNUMBER.
In what scenarios is ISNUMBER particularly useful?ISNUMBER is beneficial in data validation tasks where confirming the numeric nature of values is crucial. It helps in ensuring that calculations involving numeric data are accurate and reliable. Additionally, it simplifies identifying numeric entries within a dataset for further analysis.