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
7160623Factored
FactorDigitsBitsDate
31076830462370493335212655958597626677739127.92023-01-15 08:52:15
ECM
DigitsB1Curves
25500006 / 280
Estimated T-Level: 20.1 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2000-01-04Takahiro Shakushi7E5FE6700F03997F0
Verified (Factored)2001-12-22Jonathan Edwards7E5FE6700F03997F854421
Verified (Factored)2003-10-08S1286537E5FE6700F03997F0
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-01-20PerigD6DB53DB9B4FC80A175041653
P-1 factors
DateFactorB1B2
2023-01-1531076830462370493335212655958597626677733000008474534250
History
DateUserTypeResult
2023-01-20Simon JosefssonCERT
PRP Certification
Proof certified good
2023-01-20PerigC-PRP
M7160623/310768304623704933352126559585976266777 : D6DB53DB9B4FC80A
PRP proof power = 8
PRP: Verified
Proof certified good
2023-01-15DRobinsonPEF-PM1
Factor: 310768304623704933352126559585976266777 / (P-1, B1=3300000, B2=8474534250)
2021-09-28SRBaseNF
no factor from 2^71 to 2^72
2021-09-01SRBaseNF
no factor from 2^70 to 2^71
2021-08-19SRBaseNF
no factor from 2^69 to 2^70
2020-05-15TJAOINF
no factor from 2^68 to 2^69
2018-07-27ramgeisNF
no factor from 2^67 to 2^68
2016-10-25Gordon SpenceNF
no factor from 2^66 to 2^67
2015-06-21VictordeHollanderNF
no factor from 2^65 to 2^66
2014-02-05lycornNF
no factor from 2^64 to 2^65
2014-02-02NesowaNF
no factor from 2^63 to 2^64
2012-01-04Carsten KossendeyNF-PM1
B1=455000, B2=13991250, E=12