EDITING compare-two-columns-remove-duplicates FORMULA

I have 2 columns filled with Numbers.

0000004655215 0068958355023 Duplicate
0000007745443 0000004655215 Unique

I'm currently using this formula in column 3:

=IF(ISERROR(MATCH(A1,$B$1:$B$10000,0)),"Unique","Duplicate")

I need to edit this formula to ignore leading zeros when the formula makes the decision. So the formula would yield for example:

0000004655215 0068958355023 Duplicate
0000007745443 0000004655215 Duplicate
0000888848943 7745443 Unique


How do I edit the formula to yield this result?

All help is greatly appreciated.