Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
490313TF
No factors below 268
TF target 244
TF below 2^93 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 68000000
B2 = 1090999719810
ECM
DigitsB1Curves
2550000280 / 280
30250000574 / 640
Estimated T-Level: 29.5
LL
StatusDateUserResidueShift
VerifiedRobert ClarkCF0E93EEAE4D3B3C0
VerifiedCornelius CaesarCF0E93EEAE4D3B3C0
VerifiedBrian J. BeesleyCF0E93EEAE4D3B3C403139
VerifiedEivind TrielCF0E93EEAE4D3B3C476442
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2024-03-15-Anonymous-factor ECM small0.00 % 2024-03-15
History
DateUserTypeResult
2023-10-17masserNF-PM1
B1=68000000, B2=1090999719810
2023-07-15JossNF-PM1
B1=1000000, B2=454079455830
2023-07-14JossNF-PM1
B1=1000000, B2=222701308830
2023-07-13JossNF-PM1
B1=1000000, B2=107012235330
2023-07-11JossNF-PM1
B1=1000000, B2=49167698580
2022-12-19masserNF-PP1
Start=6/5, B1=8000000, B2=216000000
2022-12-15masserNF-PP1
Start=2/7, B1=16000000, B2=496000000
2022-12-12masserNF-PP1
Start=101/41, B1=4000000, B2=96000000
2022-05-20Gordon SpenceNF
no factor from 2^67 to 2^68
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2020-12-09chuenkitNF
no factor from 2^66 to 2^67
2018-07-30BloodERazorNF
no factor from 2^65 to 2^66
2018-01-11Gordon SpenceNF
no factor from 2^64 to 2^65
2018-01-09BloodERazorNF
no factor from 2^64 to 2^65
2016-12-02JossNF-PM1
B1=200000000, B2=20000000000, E=12
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2015-11-04Gordon SpenceNF
no factor from 2^63 to 2^64
2015-11-04Gordon SpenceNF
no factor from 2^62 to 2^63
2015-06-04snme2pm1NF
no factor from 2^61 to 2^62
2012-06-16alpertronNF-PM1
B1=10000000, B2=200000000, E=12
2011-06-23Sid & AndyNF
no factor from 2^60 to 2^61
2010-12-04Rob_DeeNF-PM1
B1=1000000, B2=2000000, E=6
2010-12-03Rob_DeeNF-PM1
B1=500000, B2=1000000