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
87232913TF
No factors below 277
TF target 275
P-1
B1 = 1100000
B2 = 200533410
ECM
DigitsB1Curves
255000078 / 280
Estimated T-Level: 21.4
PRP
StatusDateUserResidueShiftTypeBase
Verified2019-07-28Kriesel81F1B0622F1F2FCD7558954613
Verified2022-01-05tServo81F1B0622F1F2FCD013
History
DateUserTypeResult
2024-01-02KrieselNF-PP1
Start=73/17, B1=1100000, B2=200000000
2024-01-02KrieselNF-PP1
Start=6/5, B1=1100000, B2=200000000
2023-12-15KrieselNF-PP1
Start=2/7, B1=1100000, B2=200000000
2023-12-03KrieselNF-PM1
B1=1100000, B2=200533410
2022-01-06Kevin JagetCERT
PRP Certification
CERT proof power = 8
Proof certified good
2022-01-05tServoC-PRP
81F1B0622F1F2FCD
PRP proof power = 8
PRP: Verified
Proof certified good
2019-07-28KrieselC-PRP
81F1B0622F1F2FCD
PRP: Verified
PRP without proof (not generated)
2019-07-23lobsterfordinnerNF
no factor from 2^76 to 2^77
2018-06-24ixfd64NF-PM1
B1=705000, B2=13571250, E=6
2018-06-08Kevin JagetNF
no factor from 2^75 to 2^76
2018-06-08Kevin JagetNF
no factor from 2^74 to 2^75
2017-06-12-Anonymous-NF
no factor from 2^73 to 2^74
2017-05-15Judge HaleNF
no factor from 2^72 to 2^73
2017-05-15Judge HaleNF
no factor from 2^71 to 2^72
2014-11-25SMoffatNF
no factor from 2^70 to 2^71
2013-09-23Aldo_GridNF
no factor from 2^69 to 2^70
2013-08-22PascalBieriNF
no factor from 2^68 to 2^69
2013-03-06Florimond C.NF
no factor from 2^67 to 2^68
2013-03-05saffaNF
no factor from 2^66 to 2^67
2013-03-04saffaNF
no factor from 2^65 to 2^66
2010-11-17Architects CubedNF
no factor from 2^64 to 2^65