Marin Mersenne 2^P-1
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MnStatusDetails
12905411Factored
FactorDigitsBitsDate
718529715627185918329192375.92019-10-17 15:29:19
ECM
DigitsB1Curves
25500002 / 280
Estimated T-Level: 20.0 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2002-07-27Gary Cunningham13ED7A94DBDA0FA43292102
Verified (Factored)2004-10-03Scott D. Bardwick13ED7A94DBDA0FA410001115
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-05-22Poao7BEE630C8C011AA01308380453
History
DateUserTypeResult
2023-10-28nordiNF-PM1
B1=500000, B2=324556050
2023-10-16nordiNF-PM1
B1=500000
2022-05-22Jim DonovanCERT
PRP Certification
Proof certified good
2022-05-22PoaoC-PRP
M12905411/71852971562718591832919 : 7BEE630C8C011AA0
PRP proof power = 8
PRP: Verified
Proof certified good
2019-10-17KeysarecoolF-ECM
Factor: 71852971562718591832919 / (ECM curve 1, B1=50000, B2=5000000, Sigma=8007081004100198)
2018-01-07ramgeisNF
no factor from 2^68 to 2^69
2018-01-07ramgeisNF
no factor from 2^67 to 2^68
2015-12-18ThaNF-PM1
B1=300000, B2=6000000, E=12
2015-04-14ThaNF
no factor from 2^66 to 2^67
2014-05-12NesowaNF
no factor from 2^65 to 2^66
2013-06-01lycornNF
no factor from 2^64 to 2^65