Not everyone has a head for calculation and figures let alone computing complex numbers in seconds. Give Vivek Raj, a mental math expert from Alappuzha, any single or double-digit number and he can add or multiply it to itself over and over to reach up to seven digits (addition) and up to 32 digits (multiplication) in a jiffy.
While performing addition, he can produce a seven-digit result in 10 seconds. In multiplication, he can produce a 32-digit number in a-minute-and-a-half.
His passion for numbers recently earned him a Guinness World Records (GWR) title for memorising the longest number sequence in four seconds.
