2,407,899,893,032,210 is the answer — and this man calculated it in his head in 70.2 seconds

THE world’s fastest human calculator yesterday recorded the fastest-ever time for mentally working out a 200-digit number, breaking his own record in the process.

Mathlete Alexis Lemaire, 27, found the answer to the 13th root to a random 200-digit number using nothing but brain power in 70.2 seconds, beating his previous record of 72.4.

Alexis correctly calculated an answer of 2,407,899,893,032,210 from the possibility of 393 trillion answers.