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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
7163669Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 272
TF target 267
P-1
B1 = 3300000
B2 = 8474534250
ECM
DigitsB1Curves
25500006 / 280
Estimated T-Level: 20.1 ⓘ
LL
StatusDateUserResidueShift
Verified1999-08-07Stephen Wood14C40F963315D27D1680892
Verified2002-03-31Marc Getty / Phil Fizur14C40F963315D27D4711146
History
DateUserTypeResult
2023-01-18DRobinsonPENF-PM1
B1=3300000, B2=8474534250
2022-05-11USAFSSNF-PM1
B1=630000, B2=51030000
2021-09-28SRBaseNF
no factor from 2^71 to 2^72
2021-08-26SRBaseNF
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
2011-12-23James HeinrichNF-PM1
B1=135000, B2=2936250, E=6