Most people know 3.14; a few know 3.14159. But, some people take it much further. The record for reciting the most digits of pi is currently held by Lu Chao from China. In 2005, he recited 67,890 digits of pi. The recitation took 24 hours and 4 minutes. He said that after 1 year of memorization, he had memorized 100,000 digits. He had planned to recite 91,300, but he made a mistake with the 67,891st digit, saying “5” instead of “0”.