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

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MnStatusDetails
945037Factored
FactorDigitsBitsDate
20239651609575611009230438703185509110339127.32022-09-07 07:25:05
ECM
DigitsB1Curves
2550000280 / 280
30250000103 / 640
Estimated T-Level: 25.8 ⓘ
TF below 2^81 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Alex and Nick MyrmanB1B0
Verified (Factored)David Slowinski1B1B0
Verified (Factored)Michael Will81ED809802473B1B0
Verified (Factored)2001-12-08Marc Getty / Phil Fizur81ED809802473B1B181903
Verified (Factored)2015-04-11MadPoo81ED809802473B1B690090
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-09-10Denial14071D7177DF0539F6D147092653
P-1 factors
DateFactorB1B2
2022-09-07202396516095756110092304387031855091103500000001263691439010
History
DateUserTypeResult
2022-09-10blaqCERT
PRP Certification
Proof certified good
2022-09-10Denial140C-PRP
M945037/202396516095756110092304387031855091103 : 71D7177DF0539F6D
PRP proof power = 6
PRP: Verified
Proof certified good
2022-09-07axnF-PM1
Factor: 202396516095756110092304387031855091103 / (P-1, B1=50000000, B2=1263691439010)
2018-03-28Smok_bmv NF
no factor from 2^67 to 2^68
2018-03-27Smok_bmv NF
no factor from 2^66 to 2^67
2018-03-27Smok_bmv NF
no factor from 2^65 to 2^66
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2015-12-22lycornNF
no factor from 2^64 to 2^65
2015-09-18Gordon SpenceNF
no factor from 2^63 to 2^64
2015-09-18Gordon SpenceNF
no factor from 2^62 to 2^63
2015-04-11MadPooC-LL
81ED809802473B1B
2014-08-12alpertronNF-PM1
B1=10000000, B2=500000000, E=12
2014-06-04lycornNF
no factor from 2^61 to 2^62
2013-10-22David CampeauNF-PM1
B1=985000, B2=31520000, E=12
2012-06-26JossNF-PM1
B1=945151
2011-10-13JossNF-PM1
B1=714978
2011-07-14JossNF-PM1
B1=214493
2011-06-08JossNF-PM1
B1=200000
2010-05-15Architects CubedNF
no factor from 2^60 to 2^61