Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
124991Factored
FactorDigitsBitsDate
17149823709844913456092270.52008-12-23 01:15:44
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000217 / 1566
Estimated T-Level: 30.7 ⓘ
TF below 2^97 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Unknown688A0
Verified (Factored)Stefan HünickeF190A70BE983E88A0
Verified (Factored)Brian J. BeesleyF190A70BE983E88A0
Verified (Factored)Eivind TrielF190A70BE983E88A24733
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-21Oliver Kruse96A43CFD3B6C2E501013
Verified2017-10-13kkmrkkblmbrbk96A43CFD3B6C2E5018547713
Verified2020-04-17Oliver KruseA301DBA6F822068017449353
Verified2024-02-03Wentao HuangA301DBA6F822068012896753
History
DateUserTypeResult
2024-02-03Naegi MakotoCERT
PRP Certification
Proof certified good
2024-02-03Wentao HuangC-PRP
M124991/1714982370984491345609 : A301DBA6F8220680
PRP proof power = 5
PRP: Verified
Proof certified good
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2020-04-17Oliver KruseC-PRP
M124991/1714982370984491345609 : A301DBA6F8220680
PRP: Verified
PRP without proof (small exponent)
2017-10-13kkmrkkblmbrbkC-PRP
M124991/1714982370984491345609 : 96A43CFD3B6C2E50
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M124991/1714982370984491345609 : 96A43CFD3B6C2E50
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M124991/1714982370984491345609 : 96A43CFD3B6C2E50
PRP without proof (not generated)
2017-03-11kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12
2008-12-23axnF-ECM
Factor: 1714982370984491345609