Marin Mersenne 2^P-1
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MnStatusDetails
611999Composite, with 1 known prime factor. Cofactor is PRP (Probable-Prime).
Factored
FactorDigitsBitsDate
1846421422595826747777739035418332103.92017-06-08 23:23:39
LL
StatusDateUserResidueShift
Verified (Factored)David Slowinski24530
Verified (Factored)Brian Hengen7BFF5C49D64A64530
Verified (Factored)Brian J. Beesley7BFF5C49D64A64530
Verified (Factored)2015-04-11MadPoo7BFF5C49D64A6453204563
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-10-31ATHPRP_PRP_PRP_PRP_143375813
History
DateUserTypeResult
2017-10-31ATHP-PRP
M611999/18464214225958267477777390354183 is a probable prime.
2017-06-08lycornF-ECM
Factor: 18464214225958267477777390354183 / (ECM curve 125, B1=250000, B2=25000000)
2016-12-23ConductorNF
no factor from 2^64 to 2^65
2015-11-09Sid & AndyNF-PM1
B1=6119990, B2=183599700, E=12
2015-10-22Bruno VictalNF-PM1
B1=1600000, B2=66000000, E=12
2015-09-28Gordon SpenceNF
no factor from 2^63 to 2^64
2015-09-28Gordon SpenceNF
no factor from 2^62 to 2^63
2015-07-18NRNF
no factor from 2^61 to 2^62
2015-04-11MadPooC-LL
7BFF5C49D64A6453
2013-10-19David CampeauNF-PM1
B1=1265000, B2=40480000, E=12
2012-08-01JossNF-PM1
B1=1223998
2012-03-10JossNF-PM1
B1=784944
2011-08-28JossNF-PM1
B1=627955
2011-07-01JossNF-PM1
B1=376773
2010-12-26Sid & AndyNF
no factor from 2^60 to 2^61
2008-10-15Sturle SundeNF
no factor from 2^59 to 2^60
2008-10-15Sturle SundeNF
no factor from 2^58 to 2^59