Fastest child to manually calculate the fifth root of 100 numbers
The record for being the fastest to manually calculate the fifth root of 100 numbers was set by Rishikesh P. Arun (born on January 1, 2014) of Ernakulam, Kerala. He manually calculated the fifth root of 100 random numbers (of 6 to 10 digits) in 3 minutes and 40 seconds and wrote the answers on a sheet of paper (under the guidance of VMAT Academy, Bengaluru), at the age of 11 years, 1 month and 17 days, as confirmed on February 18, 2025.
