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ISNUMBER Function Tutorial
The ISNUMBER function in Excel is used to check if a value is a number. It returns TRUE if the value is a number, and FALSE if it is not.
Syntax:
ISNUMBER(value)
- value: The value you want to check. This can be a cell reference, a formula, or a direct input.
Example 1:
If cell A1 contains the number 123, the formula
=ISNUMBER(A1) will return TRUE.
Example 2:
If cell A2 contains the text “Hello”, the formula
=ISNUMBER(A2) will return FALSE.
Example 3:
If cell A3 contains the formula =1+2, the formula
=ISNUMBER(A3) will return TRUE because the result
of 1+2 is a number.
Use Cases:
- Validate if a cell contains a numeric value.
- Combine with other functions like IF to create conditional logic based on whether a value is a number.
Note:
- ISNUMBER only checks if the value is a number. It does not convert text to numbers or perform any calculations.