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
3500779Factored
FactorDigitsBitsDate
287063879928.1old
5602086586971239.02008-09-07 19:49:36
2445356138724915598312167.72022-01-13 18:44:35
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-11-07Oliver KruseFE3802074D4B82582255331153
Verified (Factored)2017-12-17kkmrkkblmbrbkFE3802074D4B82582328486453
Verified2022-02-03RichD0FE3802074D4B82583219541353
History
DateUserTypeResult
2022-03-25JossNF-PM1
B1=1000000, B2=123342450
2022-02-03Khurshid SuyunovCERT
PRP Certification
Proof certified good
2022-02-03RichD0C-PRP
M3500779/287063879/560208658697/244535613872491559831 : FE3802074D4B8258
PRP proof power = 7
PRP: Verified
Proof certified good
2022-01-13JossF
Factor: 244535613872491559831 / TF: 67-68
2022-01-13JossNF
no factor from 2^67 to 2^68
2021-03-24ViliamFNF-PM1
B1=3000000, B2=273000000
2017-12-17kkmrkkblmbrbkC-PRP
M3500779/287063879/560208658697 : FE3802074D4B8258
PRP: Verified (Factored)
PRP without proof (not generated)
2017-11-07Oliver KruseC-PRP
M3500779/287063879/560208658697 : FE3802074D4B8258
PRP: Verified (Factored)
PRP without proof (not generated)
2008-09-07Will EdgingtonF
Factor: 560208658697