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

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MnStatusDetails
14045687Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
44442327116259953040585704572891.82021-07-23 13:14:34
ECM
DigitsB1Curves
25500004 / 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)2002-01-02John Glenn51CD9A5E74908131626747
Verified (Factored)2005-04-02Ars Technica Team Prime Rib51CD9A5E749081318928099
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-12-15Oliver KruseA928C307199354E31135890653
P-1 factors
DateFactorB1B2
2021-07-2344442327116259953040585704573400000275400000
History
DateUserTypeResult
2022-12-15archwizardCERT
PRP Certification
Proof certified good
2022-12-15Oliver KruseC-PRP
M14045687/4444232711625995304058570457 : A928C307199354E3
PRP proof power = 8
PRP: Verified
Proof certified good
2021-07-23masserF-PM1
Factor: 4444232711625995304058570457 / (P-1, B1=3400000, B2=275400000)
2021-04-11masserNF
no factor from 2^71 to 2^72
2020-11-01masserNF-PM1
B1=550000, B2=12650000, e=2
2020-08-30masserNF
no factor from 2^70 to 2^71
2020-05-11masserNF
no factor from 2^69 to 2^70
2018-02-08ramgeisNF
no factor from 2^68 to 2^69
2018-02-08ramgeisNF
no factor from 2^67 to 2^68
2015-08-20ThaNF
no factor from 2^66 to 2^67
2014-07-22NesowaNF
no factor from 2^65 to 2^66