Marin Mersenne 2^P-1
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MnStatusDetails
18871781Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
379101344580161350888048972392994.92022-04-09 04:02:42
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
TF below 2^61 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2003-10-14Tomasz Kordzikowski17A27D34723218DF6423262
Verified (Factored)2007-04-23Roger M. Pearson17A27D34723218DF13540967
P-1 factors
DateFactorB1B2
2022-04-093791013445801613508880489723910000001000000
History
DateUserTypeResult
2022-04-09alpertronF-PM1
Factor: 37910134458016135088804897239 / (P-1, B1=1000000)
2021-11-12-Anonymous-NF
no factor from 2^72 to 2^73
2021-10-08-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-13SRBaseNF
no factor from 2^70 to 2^71
2020-01-20lycornNF
no factor from 2^69 to 2^70
2017-10-19ramgeisNF
no factor from 2^68 to 2^69
2017-10-16YxinityNF
no factor from 2^67 to 2^68
2014-08-02NesowaNF
no factor from 2^66 to 2^67