Marin Mersenne 2^P-1
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MnStatusDetails
2537729Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
28226012289807099579847272581.22012-09-19 16:50:38
3469013190151222791474598072788.22024-12-03 23:57:30
ECM
DigitsB1Curves
2550000105 / 280
Estimated T-Level: 21.9 ⓘ
TF below 2^68 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Murase Yoshiyuki5684D4EB3B2FCC2E0
Verified (Factored)1999-04-02Clay Curtiss5684D4EB3B2FCC2E1657153
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-10-14Oliver Kruse729506ECF5446CCF1213795053
Verified (Factored)2017-12-01kkmrkkblmbrbk729506ECF5446CCF1184112853
Verified2024-12-04Odicin729506ECF5446CCF2209503653
History
DateUserTypeResult
2024-12-04sudo_bayanCERT
PRP Certification
Proof certified good
2024-12-04OdicinC-PRP
M2537729/2822601228980709957984727/346901319015122279147459807 : 729506ECF5446CCF
PRP proof power = 7
PRP: Verified
Proof certified good
2024-12-03OdicinF-ECM
Factor: 346901319015122279147459807 / (ECM curve 1, B1=52573, B2=86479575, Edwards Sigma=733608058485172)
2022-03-11LordJuliusNF
no factor from 2^1 to 2^60
2019-07-04alpertronNF-PM1
B1=2000000, B2=60000000, E=12
2017-12-01kkmrkkblmbrbkC-PRP
M2537729/2822601228980709957984727 : 729506ECF5446CCF
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-14Oliver KruseC-PRP
M2537729/2822601228980709957984727 : 729506ECF5446CCF
PRP: Verified (Factored)
PRP without proof (not generated)
2012-09-19BudF-ECM
Factor: 2822601228980709957984727
2012-06-14Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-04-02James HeinrichNF-PM1
B1=300000, B2=8000000, E=12
2011-01-07JossNF-PM1
B1=50000
2011-01-02JossNF-PM1
B1=30000
2010-12-19JossNF-PM1
B1=20000
2009-02-12Sturle SundeNF
no factor from 2^60 to 2^61