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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
65067749Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 580000
B2 = 11455000
LL
StatusDateUserResidueShift
Verified2014-12-13Michael Hanscho83E54AA7B35329604432960
Verified2022-04-24ReadyToRetire83E54AA7B353296020336198
History
DateUserTypeResult
2022-04-24ReadyToRetireC-LL
83E54AA7B3532960
2021-10-13tottenhoffNF
no factor from 2^74 to 2^75
2016-03-28Mark RoseNF
no factor from 2^60 to 2^64
2014-12-13Michael HanschoC-LL
83E54AA7B3532960
2013-08-04TheJudgerNF-PM1
B1=580000, B2=11455000, E=6
2013-07-23SWL551NF
no factor from 2^73 to 2^74
2013-05-11Kyle AskineNF
no factor from 2^72 to 2^73
2013-05-11Kyle AskineNF
no factor from 2^71 to 2^72
2013-03-31SMoffatNF
no factor from 2^70 to 2^71
2012-01-14GrunwalderGIMPNF
no factor from 2^69 to 2^70
2010-01-06Ernst W. MayerNF
no factor from 2^68 to 2^69
2009-03-20Sturle SundeNF
no factor from 2^67 to 2^68
2009-03-19ObscuritiNF
no factor from 2^66 to 2^67
2009-03-16glennpatNF
no factor from 2^65 to 2^66
2009-03-15Fernando GómezNF
no factor from 2^64 to 2^65