Maximum times numbers doubled successively by a child
The record for doubling numbers successively for the maximum number of times was set by Kathan Jeet Joshi (born on January 1, 2018) of Amreli, Gujarat. He doubled numbers successively 25 times from 2 onwards to derive an answer of 3,35,54,432 by reciting both the questions and answers (1+1= 2; 2+2= 4; 4+4= 8… to 20,97,152+20,97,152=41,94,304, 41,94,304+41,94,304=83,88,608, 83,88,608+83,88,608=1,67,77,216, 1,67,77,216+1,67,77,216=3,35,54,432), in 2 minutes and 12 seconds, at the age of 7 years, 10 months and 27 days, as confirmed on November 28, 2025.
