Marin Mersenne 2^P-1
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MnStatusDetails
6957043Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
1131195897374703367051929292786.52020-01-23 10:30:53
ECM
DigitsB1Curves
25500006 / 280
Estimated T-Level: 20.1 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1999-06-06Luis Jenkins44E43701E19AC69C5848792
Verified (Factored)2001-10-25Robin Tremblay44E43701E19AC69C263200
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2020-01-26Luigi Morelli0CB9A5EFF9929D0B139677553
Verified2020-01-27oodaira0CB9A5EFF9929D0B1295240353
P-1 factors
DateFactorB1B2
2020-01-2311311958973747033670519292960000012000000
History
DateUserTypeResult
2025-01-16Stef42NF-PM1
B1=2296000, B2=5104448580
2020-01-27oodairaC-PRP
M6957043/113119589737470336705192929 : 0CB9A5EFF9929D0B
PRP: Verified
PRP without proof (not generated)
2020-01-26Luigi MorelliC-PRP
M6957043/113119589737470336705192929 : 0CB9A5EFF9929D0B
PRP: Verified
PRP without proof (not generated)
2020-01-23takahashiF-PM1
Factor: 113119589737470336705192929 / (P-1, B1=600000, B2=12000000, E=12)
2018-05-23ramgeisNF
no factor from 2^67 to 2^68
2016-04-06Gordon SpenceNF
no factor from 2^66 to 2^67
2015-06-26VictordeHollanderNF
no factor from 2^65 to 2^66
2014-02-16lycornNF
no factor from 2^64 to 2^65
2014-02-09NesowaNF
no factor from 2^63 to 2^64
2011-12-11James HeinrichNF-PM1
B1=130000, B2=2827500, E=6