Marin Mersenne 2^P-1
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MnStatusDetails
2543899Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
239423211777042322782339832684.32023-11-14 21:45:11
ECM
DigitsB1Curves
2550000215 / 280
Estimated T-Level: 23.8 ⓘ
TF below 2^74 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Thomas Honold3BBC34B0C101BB2E0
Verified (Factored)1999-04-02Ethan O'Connor3BBC34B0C101BB2E2487987
Verified (Factored)2018-06-10kkmrkkblmbrbk3BBC34B0C101BB2E2231129
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-11-16Anton TsvetkovAE8B65CB1BED80F91234228053
P-1 factors
DateFactorB1B2
2023-11-142394232117770423227823398320000000709992293010
History
DateUserTypeResult
2023-11-16curtiscCERT
PRP Certification
Proof certified good
2023-11-16Anton TsvetkovC-PRP
M2543899/23942321177704232278233983 : AE8B65CB1BED80F9
PRP proof power = 7
PRP: Verified
Proof certified good
2023-11-14Stef42F-PM1
Factor: 23942321177704232278233983 / (P-1, B1=20000000, B2=709992293010)
2023-02-01Architects CubedNF-PM1
B1=5000000, B2=8646469650
2021-06-21TJAOINF
no factor from 2^68 to 2^69
2019-04-01TJAOINF
no factor from 2^67 to 2^68
2018-09-23mikrNF-PM1
B1=3000000, B2=135000000, E=12
2018-08-13JossNF-PM1
B1=600000, B2=6000000, E=6
2018-06-10kkmrkkblmbrbkC-LL
3BBC34B0C101BB2E
2017-08-08Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^59 to 2^60
2015-11-08ramgeisNF
no factor from 2^65 to 2^66
2015-02-23VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-23VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-14dbaughNF
no factor from 2^62 to 2^63
2012-06-15Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-03-04James HeinrichNF-PM1
B1=300000, B2=8000000, E=12
2011-01-08JossNF-PM1
B1=50000
2011-01-03JossNF-PM1
B1=30000
2010-12-19JossNF-PM1
B1=20000
2009-02-06Sturle SundeNF
no factor from 2^60 to 2^61