Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
76541Factored
FactorDigitsBitsDate
962859756071136.5old
11791409744868846403645572578595133106.52024-01-25 18:27:55
110206744242022947819282013716060404351340129.72022-03-11 03:57:03
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001071 / 1566
Estimated T-Level: 33.4 ⓘ
TF below 2^106 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-09-21Oliver Kruse8F426E0BAF5C56051013
Verified (Factored)2017-09-21Oliver Kruse8F426E0BAF5C56051013
Verified (Factored)2017-11-06kkmrkkblmbrbk8F426E0BAF5C560511370613
Verified (Factored)2020-04-17Oliver Kruse58DB1A61C09E8FA016424153
Verified (Factored)2022-03-11SRJ287758DB1A61C09E8FA026726153
Verified2024-01-25masser58DB1A61C09E8FA036700353
P-1 factors
DateFactorB1B2
2022-03-111102067442420229478192820137160604043513160000000032068511144670
History
DateUserTypeResult
2024-02-02masserNF-PP1
Start=102/59, B1=25000000, B2=1775000000
2024-01-31masserNF-PP1
Start=6/5, B1=25000000, B2=1775000000
2024-01-31masserNF-PP1
Start=2/7, B1=25000000, B2=1775000000
2024-01-25masserC-PRP
M76541/96285975607/1102067442420229478192820137160604043513/117914097448688464036455725785951 : 58DB1A61C09E8FA0
PRP: Verified
PRP without proof (small exponent)
2024-01-25masserF-ECM
Factor: 117914097448688464036455725785951 / (ECM curve 12, B1=1294850, B2=1441418550, Edwards Sigma=7979981462740415)
2022-03-11SRJ2877C-PRP
M76541/96285975607/1102067442420229478192820137160604043513 : 58DB1A61C09E8FA0
PRP: Verified
PRP without proof (small exponent)
2022-03-11George WoltmanF-PM1
Factor: 1102067442420229478192820137160604043513 / (P-1, B1=1600000000, B2=32068511144670)
2020-04-17Oliver KruseC-PRP
M76541/96285975607 : 58DB1A61C09E8FA0
PRP: Verified
PRP without proof (small exponent)
2017-11-06kkmrkkblmbrbkC-PRP
M76541/96285975607 : 8F426E0BAF5C5605
PRP: Verified
PRP without proof (small exponent)
2017-09-21Oliver KruseC-PRP
M76541/96285975607 : 8F426E0BAF5C5605
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M76541/96285975607 : 8F426E0BAF5C5605
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M76541/96285975607 : 8F426E0BAF5C5605
PRP without proof (not generated)
2016-12-12kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12