Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
11155777Factored
FactorDigitsBitsDate
23127990071700605219449980312890.92021-08-08 09:02:16
ECM
DigitsB1Curves
25500002 / 280
Estimated T-Level: 20.0 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2001-02-18Bryan Fullerton310AB092C55A167D34465
Verified (Factored)2004-04-29Ars Technica Team Prime Rib310AB092C55A167D10565566
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-08-10LaurVD27BDBA97591D4AE1748344653
P-1 factors
DateFactorB1B2
2021-08-0823127990071700605219449980316189107185673210
History
DateUserTypeResult
2021-08-14SRBaseNF
no factor from 2^70 to 2^71
2021-08-10Ben DeloCERT
PRP Certification
Proof certified good
2021-08-10LaurVC-PRP
M11155777/2312799007170060521944998031 : D27BDBA97591D4AE
PRP proof power = 8
PRP: Verified
Proof certified good
2021-08-08LaurVF-PM1
Factor: 2312799007170060521944998031 / (P-1, B1=6189107, B2=185673210)
2021-08-06SRBaseNF
no factor from 2^69 to 2^70
2018-03-18ThaNF-PM1
B1=300000, B2=6000000, E=6
2017-12-27ramgeisNF
no factor from 2^68 to 2^69
2017-12-27ramgeisNF
no factor from 2^67 to 2^68
2015-12-28VictordeHollanderNF
no factor from 2^66 to 2^67
2015-02-06NumberwangNF
no factor from 2^65 to 2^66
2013-11-25lycornNF
no factor from 2^64 to 2^65