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
44695687
Composite: proven not-prime with Lucas-Lehmer test
No factors below 275
TF target 272
P-1
B1 = 1250000
B2 = 25000000
LL
StatusDateUserResidueShiftSoftware
Bad2009-04-13Ed1000Som3DE13AD9A2B081DC17742763Windows 64-bit,Prime95,v25.8,build 4
Verified2016-05-13MadPoo 🙂7EEA642D149E05F416234955Windows 64-bit,Prime95,v26,(aka We4)
Bad2016-10-18AirSquirrels66046228623837818634320CUDALucas v2.05.1
Verified2016-10-28ATH7EEA642D149E05F422361242CUDALucas v2.05.1
History
DateUserTypeResult
2024-06-20James HeinrichNFno factor TF: 69-70
2020-12-04Sid & AndyNFno factor TF: 74-75
2020-10-18Sid & AndyNF-PM1B1=1250000, B2=25000000
2019-12-22-anonymous-NFno factor TF: 73-74
2018-08-04-anonymous-NFno factor TF: 72-73
2016-10-30Bruno VictalNF-PM1B1=495000, B2=12375000, E=12
2016-10-28ATHC-LL7EEA642D149E05F4
2016-10-18AirSquirrelsC-LL6604622862383781
2016-05-13MadPoo 🙂C-LL7EEA642D149E05F4
2015-10-16-anonymous-NFno factor TF: 71-72
2015-09-24David CampeauNFno factor TF: 70-71
2015-07-23Carsten KossendeyNFno factor TF: 69-70
2014-06-30NRNFno factor TF: 68-69
2009-04-13Ed1000SomC-LL3DE13AD9A2B081DC
2009-01-21Ed1000SomNF-PM1B1=755000
2007-12-03-anonymous-NFno factor TF: 1-68