https://kids.guinnessworldrecords.com en

Fastest time to mentally calculate the square root of ten 8-digit numbers

Fastest time to mentally calculate the square root of ten 8-digit numbers
Apply Now
Who
Aaryan Shukla
What
71.22 second(s)
Where
Italy (Lucca)
When
11 April 2026

The fastest time to mentally calculate the square root of ten 8-digit numbers is 71.22 seconds and was achieved by Aaryan Shukla (India) in Lucca, Italy, on 11 April 2026.

Aaryan is a multiple Guinness World Records title holder.