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
79003733Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
TF
No factors below 275
TF target 275
P-1
B1 = 885000
B2 = 23452500
LL
StatusDateUserResidueShift
Unverified2015-11-22Arthur RosenthalE00EE741AC5A3F__44906917
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2025-10-10Kamil GorskiLL double-checkLL77.98 % 2025-10-13
History
DateUserTypeResult
2016-04-05Mark RoseNF
no factor from 2^63 to 2^64
2015-11-22Arthur RosenthalC-LL
E00EE741AC5A3F__
2015-09-18NickOfTimeNF
no factor from 2^74 to 2^75
2015-09-18NickOfTimeNF
no factor from 2^73 to 2^74
2015-09-18NickOfTimeNF
no factor from 2^72 to 2^73
2015-09-18NickOfTimeNF
no factor from 2^71 to 2^72
2015-09-12arnaudNF-PM1
B1=885000, B2=23452500, E=6
2013-01-16Charles A. MorrisNF
no factor from 2^70 to 2^71
2011-03-11eon_blue_apocalypseNF
no factor from 2^69 to 2^70
2011-03-06eon_blue_apocalypseNF
no factor from 2^68 to 2^69
2011-03-03Fred CireraNF
no factor from 2^67 to 2^68
2011-02-26Fred CireraNF
no factor from 2^66 to 2^67
2011-02-22ITSNF
no factor from 2^65 to 2^66
2010-11-24Craig MeyersNF
no factor from 2^64 to 2^65