Marin Mersenne 2^P-1
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MnStatusDetails
10898399Factored
FactorDigitsBitsDate
1964681123679620462257512477.42017-01-10 10:52:03
ECM
DigitsB1Curves
255000015 / 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)2000-12-14Steve Spicer6C0D3B7053AC00349571323
Verified (Factored)2004-03-08Kostas G. Gavrielidis6C0D3B7053AC0034484074
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-03-22riccardo uberti13CE16F26FE603B11962602753
History
DateUserTypeResult
2021-03-22riccardo ubertiNF-PM1
B1=500000, B2=15000000, E=12
2021-03-22Gabriele LucciCERT
PRP Certification
Proof certified good
2021-03-22riccardo ubertiC-PRP
M10898399/196468112367962046225751 : 13CE16F26FE603B1
PRP proof power = 8
PRP: Verified
Proof certified good
2017-01-10ATHF-ECM
Factor: 196468112367962046225751 / (ECM curve 1, B1=50000, B2=5000000)
2015-12-11VictordeHollanderNF
no factor from 2^66 to 2^67
2015-05-20ThaNF
no factor from 2^65 to 2^66
2013-12-08lycornNF
no factor from 2^64 to 2^65