Thread: prime number
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[email protected] amontes@gmail.com is offline
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Default prime number
On Oct 8, 9:56*pm, danpt wrote:
Does Excel has a formula to check if an integer is a prime number or not?
Thank you

Try this:
=IF(SUMPRODUCT((MOD(A1,ROW(INDIRECT("1:"&A1)))=0)+ 0)2,"composite","prime")
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