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
44724431
Composite: proven not-prime with Lucas-Lehmer test
No factors below 274
TF target 272
P-1
B1 = 1000000
B2 = 60000000
LL
StatusDateUserResidueShiftSoftware
Bad2009-09-26sunithaya2CB7675006F38B4934093398Windows 64-bit,Prime95,v25.9,build 4
Verified2009-10-31curtisc3258804ED3D6630710130280Windows Service,Prime95,v25.8,build 1
Verified2016-09-21Mark Rose3258804ED3D6630713296920Linux 64-bit,Prime95,v28.9,build 2
History
DateUserTypeResult
2024-06-20James HeinrichNFno factor TF: 69-70
2019-11-18Sid & AndyNFno factor TF: 73-74
2018-08-07-anonymous-NFno factor TF: 72-73
2018-02-04Oliver KruseNF-PM1B1=1000000, B2=60000000, E=12
2016-09-21Mark RoseC-LL3258804ED3D66307
2015-08-09GregNFno factor TF: 70-72
2015-07-30Carsten KossendeyNFno factor TF: 69-70
2014-07-06VictordeHollanderNFno factor TF: 68-69
2009-10-31curtiscC-LL3258804ED3D66307
2009-09-26sunithayaC-LL2CB7675006F38B49
2009-07-05sunithayaNF-PM1B1=540000, B2=15525000, E=6
2007-11-17ITSNFno factor TF: 1-68