=VLOOKUP(G44,KS!$A$1:$D$26668,3,FALSE)

I'm using that formula in cell F44 of worksheet1. On worksheet KS There are 26000 part numbers in column A, and in Column C (3) there are the corresponding prices. I have the part number entered in G44 of worksheet1, trying to return the price for that part number, but I get a #N/A error. If I copy the part number and go to the other worksheet and paste it into the find box, the part number line comes up with the price, etc. So the part number is correct and on the reference worksheet, but its not returning in the vlookup. Any ideas why this may be?

Thanks in advance!