Marin Mersenne 2^P-1
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MnStatusDetails
15600329Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
91025569840052353035132272.92022-04-01 14:40:06
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
TF below 2^61 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2002-10-12Kenneth Collins151E7C7929DEB6FD9485590
Verified (Factored)2006-08-25Peter Bachmeier151E7C7929DEB6FD9935475
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-08-18Perig46EA54D00C9647EA1109909353
History
DateUserTypeResult
2025-06-19GregF
Factor: 9102556984005235303513 / TF: 72-73
2023-08-18curtiscCERT
PRP Certification
Proof certified good
2023-08-18PerigC-PRP
M15600329/9102556984005235303513 : 46EA54D00C9647EA
PRP proof power = 8
PRP: Verified
Proof certified good
2023-07-24nordiNF-PM1
B1=480000, B2=308477400
2023-07-11nordiNF-PM1
B1=480000
2022-04-01Sid & AndyF
Factor: 9102556984005235303513 / TF: 72-73*
2021-09-24-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-08SRBaseNF
no factor from 2^70 to 2^71
2021-06-04lycornNF
no factor from 2^69 to 2^70
2018-02-18ramgeisNF
no factor from 2^68 to 2^69
2018-02-18ramgeisNF
no factor from 2^67 to 2^68
2013-12-31NesowaNF
no factor from 2^66 to 2^67
2013-10-07David CampeauNF
no factor from 2^65 to 2^66