Marin Mersenne 2^P-1
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MnStatusDetails
2807303Factored
FactorDigitsBitsDate
18389688330072553083042773692890.62021-11-27 18:29:16
ECM
DigitsB1Curves
2550000110 / 280
Estimated T-Level: 22.0
TF below 2^68 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Jean PennéB6FFB5B272039FB20
Verified (Factored)1999-05-02Tom CarneyB6FFB5B272039FB2951244
Verified (Factored)2018-09-02kkmrkkblmbrbkB6FFB5B272039FB22316449
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2021-11-27MarkSF3679D294ABD64DF15501153
Verified2021-11-27Tucker KaoF3679D294ABD64DF1216013753
History
DateUserTypeResult
2021-11-28curtiscCERT
PRP Certification
Proof certified good
2021-11-28Shoop8000CERT
PRP Certification
Proof certified good
2021-11-27Tucker KaoC-PRP
M2807303/1838968833007255308304277369 : F3679D294ABD64DF
PRP proof power = 7
PRP: Verified
Proof certified good
2021-11-27MarkSC-PRP
M2807303/1838968833007255308304277369 : F3679D294ABD64DF
PRP proof power = 7
PRP: Verified
Proof certified good
2021-11-27MarkSF-ECM
Factor: 1838968833007255308304277369 / (ECM curve 2, B1=50000, B2=5000000, Sigma=2538130440724219)
2021-06-07TJAOINF
no factor from 2^68 to 2^69
2020-01-11masserNF-PM1
B1=5000000, B2=200000000, E=12
2019-11-13masserNF-PM1
B1=3000000, B2=30000000, E=12
2018-12-30chuenkitNF
no factor from 2^67 to 2^68
2018-09-02kkmrkkblmbrbkC-LL
B6FFB5B272039FB2
2018-04-29JossNF-PM1
B1=2807303, B2=5614606, E=6
2017-10-24Gordon SpenceNF
no factor from 2^66 to 2^67
2016-08-04JossNF-PM1
B1=1653078, B2=3306156, E=6
2016-05-08NumberwangNF-PM1
B1=15000, B2=135000
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2016-02-10ramgeisNF
no factor from 2^65 to 2^66
2015-07-07JossNF-PM1
B1=1653078
2015-06-25JossNF-PM1
B1=1502799
2015-06-08JossNF-PM1
B1=1366181
2015-05-26JossNF-PM1
B1=1241983
2015-05-22JossNF-PM1
B1=1129076
2015-05-01JossNF-PM1
B1=1026433
2015-04-21VictordeHollanderNF
no factor from 2^64 to 2^65
2015-04-21VictordeHollanderNF
no factor from 2^63 to 2^64
2015-04-08JossNF-PM1
B1=848292
2015-03-29JossNF-PM1
B1=771175
2015-03-15JossNF-PM1
B1=637336
2015-03-12JossNF-PM1
B1=579397
2015-03-02JossNF-PM1
B1=526725
2015-02-25JossNF-PM1
B1=478841
2015-02-06JossNF-PM1
B1=435310
2015-02-01JossNF-PM1
B1=197869
2015-01-31JossNF-PM1
B1=179881
2015-01-30JossNF-PM1
B1=163529
2015-01-29JossNF-PM1
B1=148663
2014-11-25JossNF-PM1
B1=122863
2013-01-14dbaughNF
no factor from 2^62 to 2^63
2012-02-25markrNF
no factor from 2^61 to 2^62
2010-11-19markrNF-PM1
B1=100000, B2=2100000, E=6
2010-11-12JossNF-PM1
B1=15000
2009-02-12Sturle SundeNF
no factor from 2^60 to 2^61