Representatives from the Singapore Polytechnic Memory Sports Club achieved recalling the most number of digits of irrational numbers on 27 Apr 2022. Monica Chua Chi Yin wrote down 2,001 digits for the square root of 2 from memory. Kenneth Tan managed 1,648 digits for the square root of 5 and Mavis Ong Zhi Xuan scored 640 digits for the square root of 3.