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Hi, i wish to highlight all prime numbers within a column.
How can this be done?
Thanks.
Hi, i wish to highlight all prime numbers within a column.
How can this be done?
Thanks.
you can use this formula
http://www.excelexchange.com/prime_number_test.html
and put into conditional formatting
=IF(C1=2,TRUE,IF(AND(MOD(C1,ROW(INDIRECT("2:"&ROUNDUP(SQRT(C1),0))))<>0),TRUE,FALSE))
Wayne
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Thanks very much, works great!Originally Posted by etaf
Your welcome, thanks for the rep
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