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# History

**2018-12-05**:**PrimeWiki**was established, restoring of old pages began.**2018-08-31**:**Mersennewiki goes offline.****2017-12-26**:**M50**= 2^{77,232,917}-1 is reported prime.**2016-01-13**: Multiple independent verification runs prove M49 is prime.**2015-09-17**:**M49**= 2^{74,207,281}-1 is reported prime by a computer belonging to Curtis Cooper; but the discovery goes unnoticed until January 7.**2013-02-05**: Checks prove**M48**and a press release is issued.**2013-01-25**:**M48**discovered by GIMPS / Curtis Cooper.**2011-12-01**: Double-checking proves M(24036583) is the 41st Mersenne prime.**2011-03-11**: The Mersennewiki now features**300 articles**.**2010-07-11**: Double-checking proves M(20996011) is the 40th Mersenne prime.**2009-04-12**:**M47**= 2^{42,643,801}-1]] is reported prime by a computer belonging to Odd Magnar Strindmo; but the discovery goes unnoticed until June 4.**2008-09-06**: A 10 million digit long Mersenne prime is found by Hans-Michael Elvenich. This is second Mersenne prime discovered out of order since 1988. If it had been found just 2 weeks earlier, it would have won the $100,000 EFF prize**2008-08-23**: A 10 million digit long Mersenne prime is found by one of the UCLA computers running GIMPS, managed by Edson Smith. This is long enough to qualify for the $100,000 prize offered by the Electronic Frontier Foundation. The new Mersenne prime is 2^{43,112,609}-1.**2007-03-26**: Konstantin Agafonov finds that 19249 × 2^{13,018,586}+ 1 is prime. This 3,918,990-digit prime is the tenth success of Seventeen or Bust project.**2006-09-11**: Tony Reix finishes verification of this 44th Mersenne prime using 16 Itanium2 1.5 GHz in six days.**2006-09-04**: A Mersenne prime is found by Dr. Curtis Cooper and Dr. Steven Boone's CMSU team again and verification starts. The new Mersenne prime is 2^{32,582,657}-1**2005-12-24**: Tony Reix finishes verification using 16 Itanium2 1.5 GHz running Glucas.**2005-12-15**: One of the 700 computers at the Central Missouri State University run by Curtis Cooper and Steven Boone (the CMSU team) finds the 43th known Mersenne prime: 2^{30,402,457}- 1.**2005-10-19**: Double check finds that 4847 × 2^{3321063}+ 1 is prime. This 999,744-digit prime is the ninth success of Seventeen or Bust project.**2005-10-19**: The Mersennewiki now features**100 articles**.**2005-09-06**:**The Mersennewiki is established.**