Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:





MnDetails
44798993
Composite: proven not-prime with Lucas-Lehmer test
No factors below 274
TF target 272
P-1
B1 = 1000000
B2 = 20000000
LL
StatusDateUserResidueShiftSoftware
Bad2010-11-08Martti JärviC3B871CB7F1797F115527470Linux 64-bit,Prime95,v25.11,build 2
Verified2012-04-16riccardo ubertiD40CED567A0E32A142574686Windows,Prime95,v26.6,build 3
Verified2016-09-30Mark RoseD40CED567A0E32A143248070Linux 64-bit,Prime95,v28.9,build 2
History
DateUserTypeResult
2024-06-20James HeinrichNFno factor TF: 69-70
2019-11-11Sid & AndyNFno factor TF: 73-74
2019-10-03Sid & AndyNF-PM1B1=1000000, B2=20000000, E=6
2018-08-05-anonymous-NFno factor TF: 72-73
2016-09-30Mark RoseC-LLD40CED567A0E32A1
2015-08-19Sid & AndyNFno factor TF: 71-72
2015-08-09Mark RoseNFno factor TF: 70-71
2015-08-04Carsten KossendeyNFno factor TF: 69-70
2014-07-06VictordeHollanderNFno factor TF: 68-69
2012-04-16riccardo ubertiC-LLD40CED567A0E32A1
2010-11-08Martti JärviC-LLC3B871CB7F1797F1
2010-04-18dlafaveNF-PM1B1=755000
2007-11-17JC_HerlesNFno factor TF: 1-68