Number World Records  

RPV recited the first 50 digits of pi in 6.48 seconds while doing a headstand.

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

Praveen Spirals subtracted two 80-digit numbers in one minute, 15.80 seconds using only his memory.

Mangal B. wrote the numerals zero to 10 on a white board in 3.09 seconds.

Samson Z. wrote the numbers 1, 2, and 3 in Chinese characters in 1.06 seconds.

Viktor O. wrote the numbers 1, 2, and 3 in Chinese characters in 0.99 second.

Jonathan A. counted 31 numbers in binary in 30 seconds.

RPV counted 181 numbers in one minute.

Jonathan A. counted 38 numbers in ternary in 30 seconds.

Jeremy Harper counted from 1 to 1,000,000 aloud. It took him 89 days to count up to one million. All footage was streamed live on the internet. The feat raised more than $10,000 for Push America.

Jayesh K. wrote the number 8 thirty times in 10 seconds.

Tai Star carved 66 digits of Pi into a pumpkin. He named the resulting Jack-o-Lantern "Pumpkin Pi."

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

Brian Pankey wrote 151 numbers on a ping pong ball.

Mark Evans tossed eight pennies into a glass jar from 10 feet away in one minute.

Drew M. pressed the keys zero to nine on his mobile phone 18 times in 30 seconds.