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
44605871
Composite: proven not-prime with Lucas-Lehmer test
No factors below 275
TF target 272
P-1
B1 = 1500000
B2 = 30000000
LL
StatusDateUserResidueShiftSoftware
Verified2010-08-19Danz50D3CC91E2AB2DAF40987934Mac OS X 64-bit,Prime95,v25.11,build 2
Verified2017-10-20Dubslow50D3CC91E2AB2DAF11217873Linux 64-bit,Prime95,v28.7,build 1
History
DateUserTypeResult
2024-06-19James HeinrichNFno factor TF: 69-70
2020-10-29Sid & AndyNFno factor TF: 74-75
2020-08-20Sid & AndyNF-PM1B1=1500000, B2=30000000
2019-12-31-anonymous-NFno factor TF: 73-74
2018-08-06-anonymous-NFno factor TF: 72-73
2017-10-20DubslowC-LL50D3CC91E2AB2DAF
2015-10-02-anonymous-NFno factor TF: 71-72
2015-10-02-anonymous-NFno factor TF: 70-71
2015-07-23Carsten KossendeyNFno factor TF: 69-70
2014-05-27chalsallNFno factor TF: 68-69
2010-08-19DanzC-LL50D3CC91E2AB2DAF
2009-03-22-anonymous-NF-PM1B1=755000
2007-12-03Mike CurtisNFno factor TF: 1-68