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
364607Factored
FactorDigitsBitsDate
56133171755587972128995887907526064200139128.72023-02-05 10:51:59
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000201 / 1566
Estimated T-Level: 30.6
TF below 2^97 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David Slowinski324F0
Verified (Factored)Klaus KastensC37956C99CA2F24F0
Verified (Factored)Ken KrieselC37956C99CA2F24F0
Verified (Factored)Eivind TrielC37956C99CA2F24F103942
Verified (Factored)2016-06-01MadPooC37956C99CA2F24F206461
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2023-02-05Kevin_96114B2438591BF3DAEC128890753
P-1 factors
DateFactorB1B2
2023-02-05561331717555879721289958879075260642001100000021185414250
History
DateUserTypeResult
2023-02-05LindersCERT
PRP Certification
Proof certified good
2023-02-05Kevin_9611C-PRP
M364607/561331717555879721289958879075260642001 : 4B2438591BF3DAEC
PRP proof power = 5
PRP: Verified
Proof certified good
2023-02-05JossF-PM1
Factor: 561331717555879721289958879075260642001 / (P-1, B1=1000000, B2=21185414250)
2023-01-10masserNF-PP1
Start=6/5, B1=20000000, B2=620000000
2023-01-05masserNF-PP1
Start=119/23, B1=20000000, B2=620000000
2023-01-01masserNF-PP1
Start=2/7, B1=20000000, B2=640000000
2022-11-05Gordon SpenceNF
no factor from 2^67 to 2^68
2022-09-22LordJuliusNF
no factor from 2^66 to 2^67
2019-05-07Gordon SpenceNF
no factor from 2^65 to 2^66
2018-02-22Gordon SpenceNF
no factor from 2^64 to 2^65
2018-02-13BloodERazorNF
no factor from 2^64 to 2^65
2016-11-30mikrNF-PM1
B1=60000000, B2=3000000000, E=12
2016-06-01MadPooC-LL
C37956C99CA2F24F
2015-12-22Gordon SpenceNF
no factor from 2^63 to 2^64
2015-12-22Gordon SpenceNF
no factor from 2^62 to 2^63
2015-08-13NRNF
no factor from 2^61 to 2^62
2013-05-05lycornNF
no factor from 2^60 to 2^61
2012-03-17alpertronNF-PM1
B1=10000000, B2=200000000, E=12
2012-03-05JossNF-PM1
B1=1536305
2011-08-14JossNF-PM1
B1=1229044
2009-01-29Sturle SundeNF
no factor from 2^59 to 2^60
2008-12-29Sturle SundeNF
no factor from 2^58 to 2^59