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
801883
Composite: proven not-prime with Lucas-Lehmer test
No factors below 270
TF target 244
P-1
B1 = 35000000
B2 = 9998905466550
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000293 / 1566
Estimated T-Level: 30.9
TF below 2^98 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
VerifiedHorng-Ming Chen7362D209C201CCBD0Crandall,(aka X)
VerifiedDavid SlowinskiCBD0Cray,Slowinski,(aka D4)
Verified2001-06-23Brian J. Beesley7362D209C201CCBD240506Windows,Prime95,v20,(aka WW1)
Verified2015-04-11MadPoo 🙂7362D209C201CCBD610126Windows 64-bit,Prime95,v26,(aka We4)
History
DateUserTypeResult
2024-01-12Ethan O'ConnorNF-PM1B1=35000000, B2=9998905466550
2023-11-05JossNF-PM1B1=4348661, B2=434956321800
2023-09-27masserNF-PP1Start=6/5, B1=10000000, B2=790000000
2023-09-21masserNF-PP1Start=88/11, B1=10000000, B2=790000000
2023-07-16JossNF-PM1B1=1604766, B2=31171440300
2023-03-23JossNF-PM1B1=1000000, B2=13912959060
2022-11-25JossNF-PM1B1=1604766, B2=4929814890
2021-09-13gLaussNF-PP1Start=2/7, B1=10000000, B2=830000000
2019-10-20YxinityNFno factor TF: 69-70
2019-10-20YxinityNFno factor TF: 68-69
2017-06-07Smok_bmv NFno factor TF: 67-68
2017-06-06Smok_bmv NFno factor TF: 66-67
2017-06-06Smok_bmv NFno factor TF: 65-66
2015-06-01snme2pm1NFno factor TF: 64-65
2015-06-01snme2pm1NFno factor TF: 63-64
2015-06-01snme2pm1NFno factor TF: 62-63
2015-04-11MadPoo 🙂C-LL7362D209C201CCBD
2015-01-16snme2pm1NFno factor TF: 61-62
2013-08-27BloodIceNF-PM1B1=20000000, B2=200000000, E=12
2012-07-14JossNF-PM1B1=1603766
2010-05-21Architects CubedNFno factor TF: 60-61
2008-10-11Sturle SundeNFno factor TF: 59-60
2008-10-11Sturle SundeNFno factor TF: 58-59
2003-08-25-anonymous-NFno factor TF: 1-58
2003-07-06-anonymous-NF-PM1B1=131072, B2=13107200, E=12
2002-11-16-anonymous-NF-PM1B1=65537, B2=6553700, E=12
2002-06-02-anonymous-NF-PM1B1=32768, B2=3276800, E=12
2002-05-11-anonymous-NF-PM1B1=16384, B2=1638400
2001-09-30-anonymous-NFno factor TF: 1-57
2001-06-23-anonymous-C-LL7362D209C201CCBD
2001-01-28-anonymous-NF-PM1B1=60000, B2=1600000
2000-12-21-anonymous-NFno factor TF: 1-56
2000-07-17-anonymous-NFno factor TF: 1-55