Marin Mersenne 2^P-1
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MnStatusDetails
4368083Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
1003209163139063150663112476.42022-12-19 15:10:58
ECM
DigitsB1Curves
255000012 / 280
Estimated T-Level: 20.2 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)J. Iparraguirre13E177D9A962E4FE0
Verified (Factored)2000-05-31roman turczyn13E177D9A962E4FE158541
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-12-25Perig6425EE6F05630B49159380353
P-1 factors
DateFactorB1B2
2022-12-19100320916313906315066311620000026689642980
History
DateUserTypeResult
2022-12-25hardmathCERT
PRP Certification
Proof certified good
2022-12-25PerigC-PRP
M4368083/100320916313906315066311 : 6425EE6F05630B49
PRP proof power = 7
PRP: Verified
Proof certified good
2022-12-19DRobinsonPEF-PM1
Factor: 100320916313906315066311 / (P-1, B1=6200000, B2=26689642980)
2021-01-28-Anonymous-NF
no factor from 2^71 to 2^72
2021-01-28-Anonymous-NF
no factor from 2^70 to 2^71
2021-01-25-Anonymous-NF
no factor from 2^69 to 2^70
2021-01-25-Anonymous-NF
no factor from 2^68 to 2^69
2018-11-23Ismo LaitelaNF-PM1
B1=2237739, B2=62656681, E=12
2018-10-29chuenkitNF
no factor from 2^67 to 2^68
2018-05-03chuenkitNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-06-18snme2pm1NF
no factor from 2^65 to 2^66
2014-07-09lycornNF
no factor from 2^64 to 2^65
2014-07-09JayderNF
no factor from 2^63 to 2^64
2012-02-10GrunwalderGIMPNF
no factor from 2^1 to 2^63
2012-01-02Squeeky_SquirrelNF-PM1
B1=110000, B2=2255000, E=6
2010-11-17markrNF
no factor from 2^61 to 2^62
2009-08-10Carsten KossendeyNF-PM1
B1=25000, B2=356250