do the columns have cells returing a #DIV/0 error?

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Regards,
Tom Ogilvy


"Brent" wrote:

I use this formula to sum the values in every fourth cell in colums
=SUMPRODUCT((MOD(ROW(E7:E190),4)=3)*(E7:E190)). This works in about half of
the colums, but returns the error #DIV/0! in the other colums. I do not get
why I get the error only some of the time.

What causes this and how do I correct it?

Thanks
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Brent