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

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MnStatusDetails
7309933Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
877499950005394589163912376.22023-02-03 16:32:54
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)1999-06-06Patrik JohanssonC2936B70626B16791370314
Verified (Factored)2002-01-15Marc Getty / Phil FizurC2936B70626B16795075900
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-02-09Funky Waddle6871A6545100BBAC1330752253
P-1 factors
DateFactorB1B2
2023-02-038774999500053945891639133000008474534250
History
DateUserTypeResult
2023-02-09slandrumCERT
PRP Certification
Proof certified good
2023-02-09Funky WaddleC-PRP
M7309933/87749995000539458916391 : 6871A6545100BBAC
PRP proof power = 8
PRP: Verified
Proof certified good
2023-02-03DRobinsonPEF-PM1
Factor: 87749995000539458916391 / (P-1, B1=3300000, B2=8474534250)
2022-02-01Oliver KruseNF-PM1
B1=500000, B2=1041945450
2021-09-28SRBaseNF
no factor from 2^71 to 2^72
2021-08-17SRBaseNF
no factor from 2^70 to 2^71
2020-09-14Dylan DelgadoNF-PM1
B1=265000, B2=6360000, E=12
2020-05-25GdSNF
no factor from 2^69 to 2^70
2020-05-25GdSNF
no factor from 2^68 to 2^69
2018-08-05ramgeisNF
no factor from 2^67 to 2^68
2016-10-04Gordon SpenceNF
no factor from 2^66 to 2^67
2015-06-21VictordeHollanderNF
no factor from 2^65 to 2^66
2013-11-18David CampeauNF
no factor from 2^64 to 2^65
2013-10-28NesowaNF
no factor from 2^63 to 2^64
2012-03-03David CampeauNF-PM1
B1=115000, B2=2271250, E=6