However, if you just need a "unique and non-repeating" number-for instance, as a trigger for a platform like Zapier-all you really need is the numeric format of the date itself:Įither formula can work as an array formula (i.e. Google Sheets, Google Apps Script I was working on a Spreadsheet in Google Sheets a few days ago and needed to generate some random codes for my users. They could have been endless combinations of others. I just smashed some math functions together. For example, enter all your housecleaning activities and split them. Mix up your to-do list by generating random groups out of them. The most fair dividing method possible is random. The overly-complicated formula isn't all that important. No need to do a grade school style draft or put hours of thought into the most balanced teams. This will use features of the date to generate a "pseudo-random" 3-digit number. To generate a random number between 1 and 10, enter the following formula into a worksheet cell: RAND () (10 - 1) + 1. Here, High and Low signify the upper and lower limits of the desired range of numbers. For instance, assuming that your dates are in Column A and your "random numbers" in Column B, you could put something like this in B2 and copy down as far as needed: The general form of the equation used to generate a random number within a specified range is: RAND () (High - Low) + Low. Initially, it will pick a random number between 1 and 12, and after making the. But we can write any number of formulas that will produce "pseudo-random" numbers from the date. Weighted probability is commonplace in digital games. The problem, as you know, is that RAND recalculates. (In fact, to be technical, even RAND doesn't generate true random numbers rather, it uses a complex algorithm to. However, unless your work is scientific in nature, you probably don't need "random" numbers, just unpredictable ones. The short answer is "You can't" (at least not without script).
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