Yellow Pig Day

 

July 17th is National Yellow Pig Day, a mathematical holiday celebrated by mathematicians and enthusiasts. This day is linked to the number 17 and the playful concept of "Yellow Pigs," originating from the mathematical explorations of Michael Spivak and David Kelly in the 1960s. They found 17 to be the sum of the first four prime numbers (2 + 3 + 5 + 7) and incorporated the yellow pig as a quirky symbol. 

 Origin:

The concept originated with mathematicians Michael Spivak and David Kelly at Princeton University in the early 1960s. 

Mathematical Significance:

17 is the sum of the first four prime numbers (2 + 3 + 5 + 7). 

Celebration:

Yellow Pig Day is a lighthearted way for mathematicians and math enthusiasts to celebrate their passion for the subject. 

Spivak and Yellow Pigs:

Michael Spivak is known for referencing yellow pigs in his mathematical publications and textbooks. 

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