Marin Mersenne 2^P-1
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MnStatusDetails
15130903Factored
FactorDigitsBitsDate
165587975506529713648332373.82022-10-08 04:28:19
ECM
DigitsB1Curves
255000014 / 280
Estimated T-Level: 20.3 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2002-08-17Mike Walters1F4B8FA3342F25EF6278150
Verified (Factored)2005-10-18Rich Hassler1F4B8FA3342F25EF3179525
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-06-20XZTC509F32E599F545E11228955253
History
DateUserTypeResult
2023-11-05nordiNF-PM1
B1=480000, B2=449768550
2023-10-22nordiNF-PM1
B1=480000
2023-06-24ElionCERT
PRP Certification
Proof certified good
2023-06-20XZTC-PRP
M15130903/16558797550652971364833 : C509F32E599F545E
PRP proof power = 8
PRP: Verified
Proof certified good
2022-10-08ATHF-PP1
Start=2/7, B1=1000000, B2=29000000, Factor: 16558797550652971364833
2021-10-10-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-02SRBaseNF
no factor from 2^70 to 2^71
2021-06-28lycornNF
no factor from 2^69 to 2^70
2017-10-11ramgeisNF
no factor from 2^68 to 2^69
2017-01-14mikrNF
no factor from 2^67 to 2^68
2016-09-06ThaNF-PM1
B1=300000, B2=6000000, E=12
2014-05-14NesowaNF
no factor from 2^66 to 2^67
2013-09-18David CampeauNF
no factor from 2^65 to 2^66