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
3482021Factored
FactorDigitsBitsDate
16991844108439780335425692580.52017-01-13 18:50:49
ECM
DigitsB1Curves
255000011 / 280
Estimated T-Level: 20.2
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Alexey KhlyamkovD22D8704214C02780
Verified (Factored)1999-09-07Lawrence Cairns-SmithD22D8704214C02782313786
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-11-06kkmrkkblmbrbk774D720BEE3D8B52169357953
Verified2017-11-23Oliver Kruse774D720BEE3D8B521309229853
History
DateUserTypeResult
2022-09-07JossNF-PM1
B1=1096404, B2=216458550
2022-06-03LordJuliusNF
no factor from 2^66 to 2^67
2022-01-25JossNF-PM1
B1=1096404, B2=114656850
2021-06-13JossNF
no factor from 2^67 to 2^68
2021-02-24JossNF
no factor from 2^65 to 2^66
2021-02-18JossNF-PM1
B1=348202, B2=3830223, E=6
2017-11-23Oliver KruseC-PRP
M3482021/1699184410843978033542569 : 774D720BEE3D8B52
PRP: Verified
PRP without proof (not generated)
2017-11-06kkmrkkblmbrbkC-PRP
M3482021/1699184410843978033542569 : 774D720BEE3D8B52
PRP: Verified
PRP without proof (not generated)
2017-01-13Sid & AndyF-ECM
Factor: 1699184410843978033542569 / (ECM curve 2, B1=50000, B2=5000000)
2016-02-23Mark RoseNF
no factor from 2^1 to 2^61
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2016-01-05ramgeisNF
no factor from 2^65 to 2^66
2015-02-07VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-07VictordeHollanderNF
no factor from 2^63 to 2^64
2014-09-28HBendtzNF-PM1
B1=500000, B2=10000000, E=12
2012-08-18GrunwalderGIMPNF
no factor from 2^1 to 2^63
2011-07-19markrNF
no factor from 2^61 to 2^62