Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
49405843Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
164992557367502424015012012683.82020-10-16 15:52:45
LL
StatusDateUserResidueShift
Verified (Factored)2010-12-28Zet_korD37996AF96A8886127854099
Verified (Factored)2019-01-09Ilya GutkovskiyD37996AF96A8886142284792
P-1 factors
DateFactorB1B2
2020-10-1616499255736750242401501201100000020000000
History
DateUserTypeResult
2020-10-16Sid & AndyF-PM1
Factor: 16499255736750242401501201 / (P-1, B1=1000000, B2=20000000, E=12)
2019-07-22Sid & AndyNF
no factor from 2^73 to 2^74
2019-01-09Ilya GutkovskiyC-LL
D37996AF96A88861
2017-09-13Sid & AndyNF
no factor from 2^72 to 2^73
2015-11-26monstNF
no factor from 2^71 to 2^72
2015-08-29LaurVNF
no factor from 2^70 to 2^71
2015-08-27LaurVNF
no factor from 2^69 to 2^70
2010-12-28Zet_korC-LL
D37996AF96A88861
2010-02-15-Anonymous-NF-PM1
B1=785000
2008-06-03-Anonymous-NF
no factor to 2^64