Which retail chain famously used the mathematical constant π (pi) as the centerpiece of a 2015 marketing campaign, offering special pricing on pies and circular products on March 14 (3/14)?

The intersection of mathematics and retail creates fascinating opportunities for optimization and strategy. Many major retailers employ sophisticated mathematical models to enhance their operations, from inventory management to targeted marketing. This trivia question tests your knowledge about how a famous retail chain leveraged mathematical principles in their advertising campaign that highlighted analytical thinking.

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Whole Foods Market
Target
Walmart
Kroger