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

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Exponent Range:










MnStatusDetails
193493Factored
FactorDigitsBitsDate
930935610777444787245391032686.32009-02-02 03:55:31
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000193 / 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)Amdahl 6 - 1989329ECE720
Verified (Factored)Martin EiblF7B7A8EEB29ECE720
Verified (Factored)Brian J. BeesleyF7B7A8EEB29ECE720
Verified (Factored)Eivind TrielF7B7A8EEB29ECE72103044
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-22Oliver KruseDA494A0573C087761013
Verified2017-10-12kkmrkkblmbrbkDA494A0573C08776118233413
Verified2020-04-17Oliver KruseB986167CCE34A314117434453
Verified2023-08-24USAFSSB986167CCE34A314117412853
History
DateUserTypeResult
2023-08-24TenaCERT
PRP Certification
Proof certified good
2023-08-24USAFSSC-PRP
M193493/93093561077744478724539103 : B986167CCE34A314
PRP proof power = 5
PRP: Verified
Proof certified good
2022-03-07LordJuliusNF
no factor from 2^57 to 2^58
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2020-04-17Oliver KruseC-PRP
M193493/93093561077744478724539103 : B986167CCE34A314
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M193493/93093561077744478724539103 : DA494A0573C08776
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M193493/93093561077744478724539103 : DA494A0573C08776
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M193493/93093561077744478724539103 : DA494A0573C08776
PRP without proof (not generated)
2017-08-23kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12
2009-02-02axnF-ECM
Factor: 93093561077744478724539103
2009-01-25Sturle SundeNF
no factor from 2^59 to 2^60
2008-12-30Sturle SundeNF
no factor from 2^58 to 2^59