Math World Records  

Sriram recited 15 multiplication tables while blindfolded. He is four years old.

Praveen Spirals subtracted two 70-digit numbers in 55.31 seconds using only his memory.

Alex C. carved 128 digits of Pi into an apple.

In celebration of Pi Day, listeners of The Brian Lehrer Show on WNYC set a record by collectively reciting 100 consecutive digits of Pi. After host Lehrer preceded the attempt by reciting the first 11 digits, five callers each read off 20 digits of Pi in mathematical order.

Srinivasa Hariharan Iyer recited 12 multiplication tables. He is five years old.

Samarth Bhagyesh Patel mentally solved 10 random math problems correctly involving four-digit addition and subtraction in one minute, 41.20 seconds. He is seven years old and a champion at an international math competition held in Australia.

Samarth Bhagyesh Patel mentally solved 20 random math equations correctly in one minute, 23.50 seconds. He is seven years old and a champion at an international math competition held in Australia.

Samarth Bhagyesh Patel mentally solved 10 random multiplication items correctly in one minute, 30.60 seconds. He is seven years old and a champion at an international math competition held in Australia.

Krupali Bhagyesh Patel mentally solved 40 random division items correctly in 45.50 seconds. She is a champion at an international math competition held in Australia.

Krupali Bhagyesh Patel mentally solved 150 random division items in two minutes, 4.10 seconds. She is a champion at an international math competition held in Australia.

VTKlustrum wrote a Pythagorean theorem on sand measuring nine meters at its base.

Jake F. recited 81 digits of Pi during a single spin of a dreidel while blindfolded. He set the record to celebrate Pi Day.

Ewan C. recited 110 digits of pi in 13.57 seconds while juggling five balls.

Two-year-old Siddhu correctly solved the 2, 3, and 5 multiplication tables. He can also count from 1 to 1,000 and can add any two numbers between 1 to 100.

Samuel Lamphier recited the first 100 digits of Pi in a Prius in 12.65 seconds.

Ryerson Lehman-Borer solved 20 addition problems while sitting on 25 yearbooks.