Exponents in Excel represent one of those cases in which Excel expects to see something a bit different than we humans expect to see. Excel recognizes exponents when expressed as a Base^Power formula. To make an exponent appear so a human can readily identify it, use a superscript.

## Using Base^Power

The Base^Power formula in Excel is relatively straightforward. Always proceed a Base^Power formula with an **=**, just like any other formula.

**=**: All Excel formulas begin with the equal sign.**Base:**the base number. It's the 10 in 10^{2}.**^**: called a*caret*. Press Shift-6 on most keyboards.**Power**: the power number, or exponent. It's the 2 in 10^{2}.

For example, 10 to the power of 2 is **=10^2**. As soon as you press **Enter** after entering a Base^Power formula, Excel calculates the formula.

Alternatively, you can enter exponents as a POWER function by entering the base number and the exponent in parentheses . Ten-squared, for example is **=POWER(10,2)**.

## Writing Text-Based Exponents

#### Step

Highlight the cells that will be hosting exponents for humans to read. Click the **Home** menu and change the **Number Format** menu to **Text**.

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Type the base number, followed by the exponent, without a space. Highlight the exponent with the cursor.

#### Step

Click the **Home** tab once again, then click the **Expansion Arrow** in the ribbon's Font section. The Format Cells window opens.

#### Step

Click the **Superscript** option in the Format Cells window. As a superscript, the exponent is readily identified for what it is.

#### Step

Click **OK** to close the Format Cells window. The number now looks like a regular exponent. Note that text cells have small red markers in the corner to remind you that they can't be used as numbers as far as Excel is concerned. Excel treats them as if they contained a zero.

## Scientific Notation

When you enter a large exponent in Excel using the Base^Power formula, Excel displays it in scientific notation, as exponential notation. For example 10^100 appears as 1E+100.