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# Excel PRODUCT Function

## Multiplying Numbers in Excel

Multiplying Numbers in Excel with the PRODUCT Function

As well as using a simple formula for multiplication, Excel also has a function - the PRODUCT function - that can be used to multiply data together.

The syntax for the PRODUCT function is:

=PRODUCT( Number1, Number2, ... Number255 )

Up to 255 numbers can be entered as arguments for the function.

### Example Using Excel's PRODUCT Feature:

1. Enter the following data:

C1 - 235
C2 - 546

2. Click on cell C3 - the location where the results will be displayed

3. Click on the Formulas tab of the ribbon menu

4. Choose Math & Trig from the ribbon to open the function drop down list

5. Click on PRODUCT in the list to bring up the function's dialog box

6. In the dialog box, click on the Number1 line

7. Drag select cells C1 and C2 in the worksheet to add these cell references to the Number1 line

8. Click OK to complete the function and to close the dialog box

9. The answer 128,310 should appear in cell C3

10. When you click on cell C3 the complete function = PRODUCT (C1 : C2) appears in the formula bar above the worksheet

Note: Normally, when blank or empty cells are included in calculations, Excel treats these blank cells as having a value of zero ( 0 ).

Not so in the case of the PRODUCT function. If a reference to a blank cell is included as one of the arguments for PRODUCT, the blank cell is considered to have a value of one ( 1 ) not zero.

For example, if cell A1 contains a value of 9 and cell A2 is blank then the result of =PRODUCT(A1,A2), would be 9 not zero (9 x 1 = 9).

On the other hand, if a 0 has been entered into cell A2 then the results of the function =PRODUCT(A1,A2) would be zero (9 x 0 = 0).

Ted French