search for matching numbers in 2 columns

  • Thread starter Thread starter JimmyG
  • Start date Start date
J

JimmyG

This must be easy, but I can't figure it out. Help...

I have 2 columns of numbers, say column A & B. All
numbers are 10 digits (ie 2630134512). All numbers in
each column are different. Column A has about 12,000
numbers. Column B has about 5,000 numbers. Most of
numbers in column B are in Column A. I want find out
which numbers in column A are not in column B.

Thanks for your help, Jim
 
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