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Just type “=RAND()” into a cell and press Enter. The RAND function is very straightforward to use because there are no arguments at all. It’s more likely that RANDBETWEEN will generate duplicates because RAND generates decimals and there are many more possible numbers. Unfortunately, any change to the spreadsheet triggers an update of these values.Īlso, keep in mind that both of these random number functions can generate duplicate values when you use them in multiple cells.

Whenever you open a spreadsheet or refresh calculations, both of these functions will generate a new random value.

RANDARRAY: Returns any number of random integers or decimals, between any minimum or maximum numbers, and across any range of rows and columns you want.

In other words, if you want a random number between 1 and 100, this function will return an integer value inside that range.

RANDBETWEEN: Returns a random number between two numbers you provide.

RAND: Returns a random number between 0 and 1.

The two functions in Excel that work to create random numbers include RAND, RANDBETWEEN, and RANDARRAY. Random Number Generator Functions in Excel