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ISNUMBER Function

Checks whether a value is a number, and returns TRUE or FALSE.

ISNUMBER(<value>)

Term

Definition

value

The value you want to test.

TRUE if the value is numeric; otherwise FALSE.

The following three samples show the behavior of ISNUMBER.

//RETURNS: Is number
=IF(ISNUMBER(0), "Is number", "Is Not number")

//RETURNS: Is number
=IF(ISNUMBER(3.1E-1),"Is number", "Is Not number")

//RETURNS: Is Not number
=IF(ISNUMBER("123"), "Is number", "Is Not number")
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