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
351457Factored
FactorDigitsBitsDate
1060687829239765135264937428813096.42019-03-10 12:42:53
ECM
DigitsB1Curves
2550000280 / 280
30250000541 / 640
Estimated T-Level: 29.2 ⓘ
TF below 2^92 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David Slowinski6540
Verified (Factored)Unknown06540
Verified (Factored)Klaus KastensE114E1AAECAA86540
Verified (Factored)Guillermo Ballester ValorE114E1AAECAA86540
Verified (Factored)Eivind TrielE114E1AAECAA8654225418
Verified (Factored)2016-06-01MadPooE114E1AAECAA8654132955
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2019-03-11ANONYMOUSC59FE8DFABF889C1126105353
Verified2019-03-11J.R. AllenC59FE8DFABF889C1112095953
History
DateUserTypeResult
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2019-03-11J.R. AllenC-PRP
M351457/106068782923976513526493742881 : C59FE8DFABF889C1
PRP: Verified
PRP without proof (small exponent)
2019-03-11ANONYMOUSC-PRP
M351457/106068782923976513526493742881 : C59FE8DFABF889C1
PRP: Verified
PRP without proof (small exponent)
2019-03-10alexF-ECM
Factor: 106068782923976513526493742881 / (ECM curve 291, B1=250000, B2=25000000, Sigma=3712418685354658)
2018-02-17Gordon SpenceNF
no factor from 2^64 to 2^65
2016-11-09mikrNF-PM1
B1=60000000, B2=3000000000, E=12
2016-06-01MadPooC-LL
E114E1AAECAA8654
2015-12-17Gordon SpenceNF
no factor from 2^63 to 2^64
2015-12-17Gordon SpenceNF
no factor from 2^62 to 2^63
2015-07-26NRNF
no factor from 2^61 to 2^62
2013-05-28lycornNF
no factor from 2^60 to 2^61
2012-02-23alpertronNF-PM1
B1=10000000, B2=200000000, E=12
2011-08-15JossNF-PM1
B1=1288997
2009-01-26Sturle SundeNF
no factor from 2^59 to 2^60
2008-12-29Sturle SundeNF
no factor from 2^58 to 2^59