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

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Exponent Range:










MnStatusDetails
276113Factored
FactorDigitsBitsDate
22800495344402685030811603191692459936117.52022-06-18 16:36:35
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000160 / 1566
Estimated T-Level: 30.5 ⓘ
TF below 2^96 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David Slowinski183B0
Verified (Factored)Unknown183B0
Verified (Factored)Brian J. BeesleyF75C67DCC2AB183B0
Verified (Factored)Eivind TrielF75C67DCC2AB183B38086
Verified (Factored)2001-11-24Brian J. BeesleyF75C67DCC2AB183B27045
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-06-20 some-studentsA69C5BEEF11CEBB1121002453
P-1 factors
DateFactorB1B2
2022-06-182280049534440268503081160319169245991400000003243068168340
History
DateUserTypeResult
2022-06-20carldsCERT
PRP Certification
Proof certified good
2022-06-20 some-studentsC-PRP
M276113/228004953444026850308116031916924599 : A69C5BEEF11CEBB1
PRP proof power = 5
PRP: Verified
Proof certified good
2022-06-18Sid & AndyF-PM1
Factor: 228004953444026850308116031916924599 / (P-1, B1=140000000, B2=3243068168340)
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2020-01-05Gordon SpenceNF
no factor from 2^65 to 2^66
2018-03-24Gordon SpenceNF
no factor from 2^64 to 2^65
2016-02-03Gordon SpenceNF
no factor from 2^63 to 2^64
2016-02-03Gordon SpenceNF
no factor from 2^62 to 2^63
2015-08-13NRNF
no factor from 2^61 to 2^62
2013-06-29lycornNF
no factor from 2^60 to 2^61
2012-12-03alpertronNF-PM1
B1=100000000, B2=2000000000, E=12
2012-02-26JossNF-PM1
B1=2203062
2011-07-24JossNF-PM1
B1=1762449
2011-06-25JossNF-PM1
B1=1100000
2009-01-28Sturle SundeNF
no factor from 2^59 to 2^60
2009-01-01Sturle SundeNF
no factor from 2^58 to 2^59