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
11687827Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 268
P-1
B1 = 14072146
B2 = 121261590450
ECM
DigitsB1Curves
255000033 / 280
Estimated T-Level: 20.6 ⓘ
LL
StatusDateUserResidueShift
Verified2001-04-01Andrew Peercy8DEEC0DF1F9D1F0911581714
Verified2004-07-26Jonathan Bird8DEEC0DF1F9D1F0910353580
History
DateUserTypeResult
2025-01-09yuriy_5-1NF
no factor from 2^74 to 2^75
2025-01-09yuriy_5-1NF
no factor from 2^73 to 2^74
2024-08-06yuriy_5-1NF-PM1
B1=14072146, B2=121261590450
2024-04-22yuriy_5-1NF
no factor from 2^72 to 2^73
2022-11-07Naegi MakotoNF
no factor from 2^71 to 2^72
2021-08-17LaurVNF-PM1
B1=6189107, B2=185673210
2021-08-15SRBaseNF
no factor from 2^70 to 2^71
2021-08-06SRBaseNF
no factor from 2^69 to 2^70
2018-01-11ramgeisNF
no factor from 2^68 to 2^69
2018-01-11ramgeisNF
no factor from 2^67 to 2^68
2016-02-08VictordeHollanderNF
no factor from 2^66 to 2^67
2014-12-20NesowaNF
no factor from 2^65 to 2^66
2013-11-02lycornNF
no factor from 2^64 to 2^65