MS Excel formula

I’m looking to format cell A3 to have the same value as A1 but if the value in A1 is the same as any cell in column B I want it to be blank.  With this formula, =IF(A1=B1," ",IF(A1<>B1,A1)) I can do it but only in the B1 cell not a range.
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Ryan ChongBusiness Systems Analyst , ex-Senior Application EngineerCommented:
try this formula in cell A3:

=IF( IFERROR( VLOOKUP(A1,B:B,1,FALSE), "@@@@@") = "@@@@@", A1, "")

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Ryan ChongBusiness Systems Analyst , ex-Senior Application EngineerCommented:
emmm, based on requirement, or:


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jjl1210Author Commented:
Thanks so much for the help.
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Microsoft Excel

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