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
2014651Factored
FactorDigitsBitsDate
2215394089092568871857.6old
14425974345723354189432270.32021-04-28 22:02:50
ECM
DigitsB1Curves
2550000280 / 280
30250000115 / 640
Estimated T-Level: 25.9
TF below 2^81 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Richard HilsonAF1740D2B0609D590
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-05Oliver KruseD6357ED935EDA9411013
Verified (Factored)2017-11-13Chang Chia-TcheD6357ED935EDA94118177913
Verified2021-04-28riccardo uberti64BB6AD57928CFBC241051953
History
DateUserTypeResult
2021-04-30riccardo ubertiNF-PP1
Start=2/7, B1=2500000, B2=50000000
2021-04-30riccardo ubertiNF-PM1
B1=5000000, B2=100000000, E=12
2021-04-29Chad Steenerson CERT
PRP Certification
Proof certified good
2021-04-28riccardo ubertiC-PRP
M2014651/221539408909256887/1442597434572335418943 : 64BB6AD57928CFBC
PRP proof power = 7
PRP: Verified
Proof certified good
2021-04-28_p95holder_F-ECM
Factor: 1442597434572335418943 / (ECM curve 3, B1=50000, B2=5000000)
2017-11-13Chang Chia-TcheC-PRP
M2014651/221539408909256887 : D6357ED935EDA941
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-05Oliver KruseC-PRP
M2014651/221539408909256887 : D6357ED935EDA941
PRP: Verified (Factored)
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=500000, B2=15000000, E=12