Lu Chao
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The record for memorizing digits of pi, certified by Guinness World Records, is 67,890 digits, recited in China by Lu Chao in 24 hours and 4 minutes on 20 November 2005.
In 2005, Lu Chao of China set a world record by memorising the first 67,890 digits of Pi
6 years old
In 2005, Lu Chao of China set a world record by reciting the first 67,890 digits of pi from memory.
In May, 2005 you would have been 20, and in May 2015 would be 30.(2005-1985 = 20, 2015-1985 = 30)To find the person's age in May of any year after 2000, add 15 to the last two digits of that year, e.g. in May, 2014, the person is 14 + 15 = 29.