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

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Exponent Range:










MnStatusDetails
11616131Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 268
P-1
B1 = 13985824
B2 = 124183569510
ECM
DigitsB1Curves
255000030 / 280
Estimated T-Level: 20.5 ⓘ
LL
StatusDateUserResidueShift
Verified2001-01-14C. Cooper / S. BooneCA11E1FCB7E1AB834895228
Verified2004-04-29Jon FinkCA11E1FCB7E1AB8310851363
History
DateUserTypeResult
2025-01-20yuriy_5-1NF
no factor from 2^74 to 2^75
2024-09-02yuriy_5-1NF
no factor from 2^73 to 2^74
2024-08-06yuriy_5-1NF
no factor from 2^72 to 2^73
2024-06-04yuriy_5-1NF-PM1
B1=13985824, B2=124183569510
2023-01-02Naegi MakotoNF
no factor from 2^71 to 2^72
2021-08-22LaurVNF-PM1
B1=6189107, B2=185673210
2021-08-14SRBaseNF
no factor from 2^70 to 2^71
2021-08-06SRBaseNF
no factor from 2^69 to 2^70
2018-01-07ramgeisNF
no factor from 2^68 to 2^69
2018-01-07ramgeisNF
no factor from 2^67 to 2^68
2016-01-15VictordeHollanderNF
no factor from 2^66 to 2^67
2014-12-20NesowaNF
no factor from 2^65 to 2^66
2013-02-11Richard B. WoodsNF
no factor from 2^64 to 2^65
2011-05-02Carsten KossendeyNF-PM1
B1=715000, B2=24667500, E=12