Which retailer launched a 'Pi Day' promotion in 2015 that offered select items for $3.14 and gained viral attention when they announced they would start the sale at exactly 9:26:53 AM to match the first 10 digits of pi?

The retail world has embraced mathematics in surprising ways to enhance marketing campaigns and customer experiences. From algorithmic pricing to geometric store layouts, numbers drive modern retail innovation. This trivia question explores how a famous retailer used a mathematical constant in a clever marketing campaign that captured the attention of math enthusiasts worldwide. Test your knowledge of where retail marketing and mathematics intersect!

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Microsoft Store
Apple
Texas Instruments
Barnes & Noble