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Algorithm Challenge
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Bob Phillips
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"Bernard Liengme" wrote in message
...
The value must be entered as '0500450002883 to preserve the leading zero
You could always force it
=MOD(SUMPRODUCT(--(MID(TEXT(A1,"0000000000000"),ROW(INDIRECT("1:12") ),1)),RO
W(INDIRECT("1:12"))),9)
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