Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
992659Factored
FactorDigitsBitsDate
6501713082114620277286855383908861911338125.62022-10-14 01:25:09
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000160 / 1566
Estimated T-Level: 30.5 ⓘ
TF below 2^96 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David Slowinski15D00
Verified (Factored)Paul Victor NovareseA78B6CEEB6ECB5D00
Verified (Factored)Georg FischerA78B6CEEB6ECB5D00
Verified (Factored)2015-04-11MadPooA78B6CEEB6ECB5D0495801
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-10-15Kevin_961175848E4829938385160619653
P-1 factors
DateFactorB1B2
2022-10-1465017130821146202772868553839088619113500000001262491740510
History
DateUserTypeResult
2022-10-15johnguinCERT
PRP Certification
Proof certified good
2022-10-15Kevin_9611C-PRP
M992659/65017130821146202772868553839088619113 : 75848E4829938385
PRP proof power = 6
PRP: Verified
Proof certified good
2022-10-14axnF-PM1
Factor: 65017130821146202772868553839088619113 / (P-1, B1=50000000, B2=1262491740510)
2021-09-15YxinityNF
no factor from 2^67 to 2^68
2017-12-12Gordon SpenceNF
no factor from 2^66 to 2^67
2017-12-12Gordon SpenceNF
no factor from 2^65 to 2^66
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2015-05-15snme2pm1NF
no factor from 2^64 to 2^65
2015-05-15snme2pm1NF
no factor from 2^63 to 2^64
2015-04-11MadPooC-LL
A78B6CEEB6ECB5D0
2013-12-12alpertronNF-PM1
B1=10000000, B2=500000000, E=12
2013-12-08Jerry HallettNF
no factor from 2^62 to 2^63
2013-12-08Jerry HallettNF
no factor from 2^61 to 2^62
2013-10-25David CampeauNF-PM1
B1=1010000, B2=32320000, E=12
2012-07-14JossNF-PM1
B1=992689
2012-02-06JossNF-PM1
B1=670824
2011-06-12JossNF-PM1
B1=400000
2011-05-29JossNF-PM1
B1=200000
2010-05-15Architects CubedNF
no factor from 2^60 to 2^61