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
44171297
Composite: proven not-prime with Lucas-Lehmer test
No factors below 274
TF target 272
P-1
B1 = 480000
B2 = 10920000
LL
StatusDateUserResidueShiftSoftware
Bad2010-03-28Christian GeschwentnerB85EB575D8415C0022351167Windows,Prime95,v25.9,build 4
Verified2015-11-25GregC5274A2E51A2513C20252554CUDALucas v2.05 Beta
Verified2016-09-08Mark RoseC5274A2E51A2513C13993246Linux 64-bit,Prime95,v28.9,build 2
History
DateUserTypeResult
2022-04-10TheJudgerNFno factor TF: 73-74
2022-04-10TheJudgerNFno factor TF: 72-73
2016-09-08Mark RoseC-LLC5274A2E51A2513C
2015-11-25GregC-LLC5274A2E51A2513C
2015-10-02-anonymous-NFno factor TF: 71-72
2015-10-02-anonymous-NFno factor TF: 70-71
2010-03-28Christian GeschwentnerC-LLB85EB575D8415C00
2009-12-29Christian GeschwentnerNF-PM1B1=480000, B2=10920000
2007-10-17iPrimeNFno factor TF: 1-70
2004-08-06dave_0273NFno factor TF: 1-62