Marin Mersenne 2^P-1
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MnStatusDetails
7482757Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
22514994420300311526012270.92019-10-06 18:54:11
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)1999-08-07Laura Cooksey58CB6E9D67E2A4913230896
Verified (Factored)2002-07-06Rick Cummings58CB6E9D67E2A4914684893
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2019-10-07mnd9FEDFA1CBACAB7A5B1391081553
Verified2019-10-08marssystemsFEDFA1CBACAB7A5B1347089353
P-1 factors
DateFactorB1B2
2019-10-06225149944203003115260144000013640000
History
DateUserTypeResult
2019-10-08marssystemsC-PRP
M7482757/2251499442030031152601 : FEDFA1CBACAB7A5B
PRP: Verified
PRP without proof (not generated)
2019-10-07mnd9C-PRP
M7482757/2251499442030031152601 : FEDFA1CBACAB7A5B
PRP: Verified
PRP without proof (not generated)
2019-10-06USAFSSF-PM1
Factor: 2251499442030031152601 / (P-1, B1=440000, B2=13640000, E=12)
2018-04-27YxinityNF
no factor from 2^69 to 2^70
2018-04-27YxinityNF
no factor from 2^68 to 2^69
2016-06-23america64NF
no factor from 2^67 to 2^68
2016-05-27america64NF
no factor from 2^66 to 2^67
2015-06-26VictordeHollanderNF
no factor from 2^65 to 2^66
2013-11-29David CampeauNF
no factor from 2^64 to 2^65
2013-10-24NesowaNF
no factor from 2^63 to 2^64
2012-09-08NesowaNF-PM1
B1=90000, B2=1687500, E=6