Catalan's Constant - Known Digits

Known Digits

The number of known digits of Catalan's constant G has increased dramatically during the last decades. This is due both to the increase of performance of computers as well as to algorithmic improvements.

Number of known decimal digits of Catalan's constant G
Date Decimal digits Computation performed by
1832 16 Thomas Clausen
1858 19 Carl Johan Danielsson Hill
1864 14 Eugène Charles Catalan
1877 20 James W. L. Glaisher
1913 32 James W. L. Glaisher
1990 20,000 Greg J. Fee
1996 50,000 Greg J. Fee
August 14, 1996 100,000 Greg J. Fee & Simon Plouffe
September 29, 1996 300,000 Thomas Papanikolaou
1996 1,500,000 Thomas Papanikolaou
1997 3,379,957 Patrick Demichel
January 4, 1998 12,500,000 Xavier Gourdon
2001 100,000,500 Xavier Gourdon & Pascal Sebah
2002 201,000,000 Xavier Gourdon & Pascal Sebah
October 2006 5,000,000,000 Shigeru Kondo & Steve Pagliarulo
August 2008 10,000,000,000 Shigeru Kondo & Steve Pagliarulo
January 31, 2009 15,510,000,000 Alexander J. Yee & Raymond Chan
April 16, 2009 31,026,000,000 Alexander J. Yee & Raymond Chan

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