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
5596121Factored
FactorDigitsBitsDate
275447191038005423034753452652731101.12022-09-13 12:42:41
58443373550788224187341956996088133108.82022-09-13 12:42:41
ECM
DigitsB1Curves
25500009 / 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)2000-03-22Victor LembrykA0E72A6078043CB32645556
Verified (Factored)2000-09-15Steve GrahamA0E72A6078043CB31848381
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-09-19Perig82A0B6F2AF522EF92410383653
P-1 factors
DateFactorB1B2
2022-09-13160980630793494773236574272702354054828707392228940073024679028770000006010531560
History
DateUserTypeResult
2022-09-19PCanalytics.comCERT
PRP Certification
Proof certified good
2022-09-19PerigC-PRP
M5596121/584433735507882241873419569960881/2754471910380054230347534526527 : 82A0B6F2AF522EF9
PRP proof power = 7
PRP: Verified
Proof certified good
2022-09-13Sid & AndyF-PM1
Factor: 1609806307934947732365742727023540548287073922289400730246790287 / (P-1, B1=7000000, B2=6010531560)
2021-09-18SRBaseNF
no factor from 2^71 to 2^72
2021-08-23SRBaseNF
no factor from 2^70 to 2^71
2021-08-18SRBaseNF
no factor from 2^69 to 2^70
2020-07-24TJAOINF
no factor from 2^68 to 2^69
2019-10-03GdSNF-PM1
B1=200000, B2=6000000, E=12
2018-06-08ramgeisNF
no factor from 2^67 to 2^68
2016-08-02Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^1 to 2^62
2015-09-01snme2pm1NF
no factor from 2^65 to 2^66
2014-12-25monstNF
no factor from 2^64 to 2^65
2014-12-24NesowaNF
no factor from 2^63 to 2^64
2011-01-06USAFSSNF-PM1
B1=65000, B2=1023750, E=6
2009-06-06Carsten KossendeyNF-PM1
B1=30000, B2=397500
2009-02-09GrunwalderGIMPNF
no factor from 2^62 to 2^63