Marin Mersenne 2^P-1
Username
Password
Forgot password?
White
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
3669553Factored
FactorDigitsBitsDate
6083508151247162897156472479.02021-11-11 12:48:21
ECM
DigitsB1Curves
255000028 / 280
Estimated T-Level: 20.5
TF below 2^63 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Jamie TaylorCEF2EC737969EF220
Verified (Factored)1999-10-29Bradford BrownCEF2EC737969EF222904047
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2021-11-13Luminescence20FB47A312667E38197151653
History
DateUserTypeResult
2022-05-24JossNF-PM1
B1=100000, B2=130364850
2022-03-22JossNF-PM1
B1=100000
2022-03-04JossNF-PM1
B1=90000
2021-11-13Simon JosefssonCERT
PRP Certification
Proof certified good
2021-11-13LuminescenceC-PRP
M3669553/608350815124716289715647 : 20FB47A312667E38
PRP proof power = 7
PRP: Verified
Proof certified good
2021-11-11Sergey NosovF-ECM
Factor: 608350815124716289715647 / (ECM curve 1, B1=50000, B2=5000000)
2021-02-24axnNF
no factor from 2^69 to 2^70
2020-11-11axnNF
no factor from 2^68 to 2^69
2020-10-13axnNF-PM1
B1=30000000, B2=600000000, E=12
2018-11-12TJAOINF
no factor from 2^67 to 2^68
2017-02-12JossNF-PM1
B1=241228, B2=2412280, E=6
2017-01-29JossNF-PM1
B1=167520
2017-01-03Gordon SpenceNF
no factor from 2^66 to 2^67
2016-12-30JossNF-PM1
B1=129600
2016-12-24JossNF-PM1
B1=108000
2016-10-02JossNF-PM1
B1=90000, B2=3942000
2016-06-24JossNF-PM1
B1=90000, B2=3285000, E=6
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-10-20ramgeisNF
no factor from 2^65 to 2^66
2015-01-23VictordeHollanderNF
no factor from 2^64 to 2^65
2015-01-23VictordeHollanderNF
no factor from 2^63 to 2^64
2012-06-05GrunwalderGIMPNF
no factor from 2^1 to 2^63
2012-02-07Squeeky_SquirrelNF-PM1
B1=90000, B2=1642500, E=6
2011-06-06Grant McCrackenNF
no factor from 2^61 to 2^62
2009-07-11Carsten KossendeyNF-PM1
B1=20000, B2=260000
2009-03-08S485122NF
no factor from 2^60 to 2^61