Create random numbers in a column with no repeats


New Member
May 2, 2011
I attempting to create a formula that will create random numbers in a column without repeats. For example, I have a spreadsheet with two columns. The first column I want to contain the random numbers and the second column will contain names. I just need the formula to create the random numbers once. I'm sure this is probably fairly easy for some, but not me. Ugh! Thank you for your help.


Well-known Member
Feb 28, 2012
How long do the numbers need to be? If it's 6 digits digits you can use the following which will give you almost 1 million chance of there being a duplicate


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