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

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Exponent Range:










MnStatusDetails
63686383Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 605000
B2 = 12251250
LL
StatusDateUserResidueShift
Verified2014-08-27curtiscC5D076E1E7C531AD55025486
Verified2023-06-03joedeshonC5D076E1E7C531AD29454721
Verified2023-07-09OytunC5D076E1E7C531AD3790089
History
DateUserTypeResult
2023-07-09OytunC-LL
C5D076E1E7C531AD
2023-06-03joedeshonC-LL
C5D076E1E7C531AD
2022-12-11tottenhoffNF
no factor from 2^74 to 2^75
2016-02-23Mark RoseNF
no factor from 2^59 to 2^63
2014-08-27curtiscC-LL
C5D076E1E7C531AD
2013-12-01kdgehmanNF
no factor from 2^73 to 2^74
2013-10-13TheJudgerNF-PM1
B1=605000, B2=12251250, E=6
2013-03-07Tim SorberaNF
no factor from 2^72 to 2^73
2013-03-07Tim SorberaNF
no factor from 2^71 to 2^72
2012-08-24MarzbugNF
no factor from 2^70 to 2^71
2012-05-12-Anonymous-NF
no factor from 2^69 to 2^70
2009-08-30Helmut ZulusNF
no factor from 2^68 to 2^69
2009-03-07Team_Elteor_Borislavj~ElteorNF
no factor from 2^67 to 2^68
2009-03-06Team_Elteor_Borislavj~ElteorNF
no factor from 2^66 to 2^67
2009-03-05Willem van BergeijkNF
no factor from 2^65 to 2^66
2009-03-03korvaNF
no factor from 2^64 to 2^65
2009-02-26Wojciech FlorekNF
no factor from 2^63 to 2^64