Marin Mersenne 2^P-1
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MnStatusDetails
178489Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
128253668247905407075485672683.42009-11-20 02:50:52
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000271 / 1566
Estimated T-Level: 30.9
TF below 2^98 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Amdahl 6 - 198931256E9D0
Verified (Factored)Conrad Curry67489A20B1256E9D0
Verified (Factored)Brian J. Beesley67489A20B1256E9D0
Verified (Factored)Eivind Triel67489A20B1256E9D21407
Verified (Factored)2003-08-08S11851667489A20B1256E9D99589
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver Kruse416397F4BEBC95F11013
Verified2017-10-12kkmrkkblmbrbk416397F4BEBC95F113408313
Verified2020-04-17Oliver Kruse45735DAE060B47D813637953
Verified2024-02-03Wentao Huang45735DAE060B47D814386053
History
DateUserTypeResult
2024-02-03slaurCERT
PRP Certification
Proof certified good
2024-02-03Wentao HuangC-PRP
M178489/12825366824790540707548567 : 45735DAE060B47D8
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
2021-08-27happy5214NF-PP1
Start=2/7, B1=50000000, B2=4050000000
2020-04-17Oliver KruseC-PRP
M178489/12825366824790540707548567 : 45735DAE060B47D8
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M178489/12825366824790540707548567 : 416397F4BEBC95F1
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M178489/12825366824790540707548567 : 416397F4BEBC95F1
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M178489/12825366824790540707548567 : 416397F4BEBC95F1
PRP without proof (not generated)
2017-06-01kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12
2009-11-20Sturle SundeF-ECM
Factor: 12825366824790540707548567
2009-01-27axnNF-PM1
B1=5000000, B2=200000000, E=12
2009-01-25Sturle SundeNF
no factor from 2^59 to 2^60
2008-12-31Sturle SundeNF
no factor from 2^58 to 2^59