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
13291111Factored
FactorDigitsBitsDate
2526684003414187232116038472787.72022-01-20 02:08:31
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
TF below 2^61 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2002-03-10Keith BallC8ACD8847A15EF451415586
Verified (Factored)2004-11-22Ars Technica Team Prime RibC8ACD8847A15EF454959258
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-01-29Ethan O'ConnorD18E8E5FA6EFF2401621648853
Verified2022-10-04ATHD18E8E5FA6EFF24011197552553
P-1 factors
DateFactorB1B2
2022-01-20252668400341418723211603847501000501000
History
DateUserTypeResult
2022-10-04Massimo Cappelli (ik5pwa)CERT
PRP Certification
Proof certified good
2022-10-04ATHC-PRP
M13291111/252668400341418723211603847 : D18E8E5FA6EFF240
PRP proof power = 8
PRP: Verified
Proof certified good
2022-02-18Ethan O'ConnorNF-PM1
B1=10000000, B2=29075136090
2022-02-18Ethan O'ConnorNF-PM1
B1=1000000, B2=2325673350
2022-01-29Ethan O'ConnorC-PRP
M13291111/252668400341418723211603847 : D18E8E5FA6EFF240
PRP proof power = 8
PRP: Verified
PRP proof never uploaded
2022-01-20Zhang RuichongF-PM1
Factor: 252668400341418723211603847 / (P-1, B1=501000)
2022-01-01-Anonymous-NF
no factor from 2^72 to 2^73
2021-10-22-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-03SRBaseNF
no factor from 2^70 to 2^71
2021-08-07SRBaseNF
no factor from 2^69 to 2^70
2018-01-07ramgeisNF
no factor from 2^68 to 2^69
2017-12-23-Anonymous-NF
no factor from 2^67 to 2^68
2015-07-20NesowaNF
no factor from 2^66 to 2^67
2014-06-01NesowaNF
no factor from 2^65 to 2^66
2013-05-15lycornNF
no factor from 2^64 to 2^65