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
206779Factored
FactorDigitsBitsDate
4407753673459271548.6old
1625725581959334640034019681515464159138123.62022-02-11 08:39:42
ECM
DigitsB1Curves
2550000280 / 280
30250000620 / 640
Estimated T-Level: 29.8
TF below 2^94 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-09-22Oliver Kruse0A3D9562B32381381013
Verified (Factored)2017-10-12kkmrkkblmbrbk0A3D9562B3238138116147013
Verified (Factored)2020-04-17Oliver Kruse56D37CA1B5E35214112748153
Verified2022-02-11Oliver Kruse56D37CA1B5E35214210709553
Verified2023-08-03USAFSS56D37CA1B5E35214218189853
P-1 factors
DateFactorB1B2
2022-02-11162572558195933464003401968151546415913000000010070832992220
History
DateUserTypeResult
2023-08-03curtiscCERT
PRP Certification
Proof certified good
2023-08-03USAFSSC-PRP
M206779/440775367345927/16257255819593346400340196815154641591 : 56D37CA1B5E35214
PRP proof power = 5
PRP: Verified
Proof certified good
2022-02-11argiloCERT
PRP Certification
Proof certified good
2022-02-11Oliver KruseC-PRP
M206779/440775367345927/16257255819593346400340196815154641591 : 56D37CA1B5E35214
PRP proof power = 5
PRP: Verified
Proof certified good
2022-02-11Oliver KruseF-PM1
Factor: 16257255819593346400340196815154641591 / (P-1, B1=30000000, B2=10070832992220)
2021-05-09Oliver KruseNF-PM1
B1=30000000, B2=3000000000
2020-04-17Oliver KruseC-PRP
M206779/440775367345927 : 56D37CA1B5E35214
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M206779/440775367345927 : 0A3D9562B3238138
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M206779/440775367345927 : 0A3D9562B3238138
PRP: Verified (Factored)
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M206779/440775367345927 : 0A3D9562B3238138
PRP without proof (not generated)