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Excel Guides

To find the number of significant digits in a number in Excel, you can use the **SIGN** function. This function returns a value that is the sign of a number. A positive number indicates a positive value, zero indicates no value, and a negative number indicates a negative value. The **SIGN** function can be used to find the number of significant digits in a number by taking the absolute value of the number and then counting the number of digits to the left of the decimal point.

For example, if you have the number 1234.567 and you want to find out how many significant digits it has, you would take the absolute value of the number, which is 1234.567, and then count the number of digits to the left of the decimal point, which is 4.

You can also use the **SIGN** function to find the number of significant digits in a number by taking the logarithm of the absolute value of the number and then counting the number of digits to the right of the decimal point.

For example, if you have the number 1234.567 and you want to find out how many significant digits it has, you would take the logarithm of 1234.567, which is 3.097245439778316, and then count the number of digits to the right of the decimal point, which is 2.

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