Computers Year Record-holder Time Digits of Pi 1949 G W Reitwiesner et al 70 hours 2,037 1958 Francois Genuys 1.7 hours 10,000 1961 Daniel Shanks & John Wrensch 8.7 hours 100,000 1973 Hean Guilloud and M. Dichampt 28 hours 1,001,250 1983 Yasumasa Kanada, Sayaka Yoshino and Yoshiaki Tamura 16,777,206 1987 Yasumasa Kanada, Yoshiaki Tamura, Yoshinobu Kubo et al 134,214,700 1989 Gregory V. Chudnovsky & David V. Chudnovsky 480,000,000 1991 Gregory V. Chudnovsky & David V. Chudnovsky 2,260,000,000 1997 Yasumasa Kanada and Daisuke Takahashi 51,539,600,000 1999 Yasumasa Kanada and Daisuke Takahashi 206,158,430,000 2002 Yasumasa Kanada & 9 person team (64 computing nodes) 600 hours 1,241,100,000,000 2009 Fabrice Bellard (with home computer) 131 days 2,699,999,990,000 2010 Shigeru Kondo (with home computer) 90 days 5,000,000,000,000 2011 Shigeru Kondo (with home computer) 371 days 10,000,000,000,050 2019 Emma Haruka Iwao (using cloud computer) 121 days 31,415,926,535,897 2020 Timothy Mullican (using home computers) 303 days 50,000,000,000,000