Pythagorean Triple Day 2017 8-15-17 August 15, 2017 t-shirt-TH

Solid colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 65% Cotton, 35% Polyester, Imported, Machine wash cold with like colors, dry low heat, Pythagorean Theorem Day or Pythagoras Theorem Day is celebrated when the sum of the squares of the first two digits in a date equals the square of the last digit in the date. Pythagorean Triple Day is here and you need this t-shirt. The last *primitive* pythagorean triple day was 5-12-13, and the next one won”t be until 12-16-20 and 7-24-25. Get your shirt now to arrive before August 15, 2017, Lightweight, Classic fit, Double-needle sleeve and bottom hem