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

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MnStatusDetails
486203Composite, with 4 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
972407619.9old
2635103571291237.92008-07-21 09:20:15
1787256046336145880792167.32014-11-20 11:21:08
101026413623020126264332373.12015-05-29 10:14:47
ECM
DigitsB1Curves
2550000280 / 280
30250000200 / 640
Estimated T-Level: 26.6
TF below 2^83 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-27Oliver Kruse99A60CAE1EA9E3FA4013
Verified2017-10-13Oliver Kruse99A60CAE1EA9E3FA444623713
Verified2017-12-16ATH99A60CAE1EA9E3FA432855513
Verified2020-04-18Oliver KruseFAD605C44A2E8E58416839753
Verified2024-11-27kkmrkkblmbrbkFAD605C44A2E8E58441574353
P-1 factors
DateFactorB1B2
2014-11-201787256046336145880793000000100000000
History
DateUserTypeResult
2024-11-27stenleiCERT
PRP Certification
Proof certified good
2024-11-27kkmrkkblmbrbkC-PRP
M486203/972407/263510357129/178725604633614588079/10102641362302012626433 : FAD605C44A2E8E58
PRP proof power = 6
PRP: Verified
Proof certified good
2020-04-18Oliver KruseC-PRP
M486203/972407/263510357129/178725604633614588079/10102641362302012626433 : FAD605C44A2E8E58
PRP: Verified
PRP without proof (small exponent)
2017-12-16ATHC-PRP
M486203/972407/263510357129/178725604633614588079/10102641362302012626433 : 99A60CAE1EA9E3FA
PRP: Verified
PRP without proof (small exponent)
2017-10-13Oliver KruseC-PRP
M486203/972407/263510357129/178725604633614588079/10102641362302012626433 : 99A60CAE1EA9E3FA
PRP: Verified
PRP without proof (small exponent)
2017-09-27Oliver KruseC-PRP
M486203/972407/263510357129/178725604633614588079/10102641362302012626433 : 99A60CAE1EA9E3FA
PRP: Verified
PRP without proof (not generated)
2017-09-26Oliver KruseC-PRP
M486203/972407/263510357129/178725604633614588079/10102641362302012626433 : 99A60CAE1EA9E3FA
PRP without proof (not generated)
2015-05-29TJAOIF-ECM
Factor: 10102641362302012626433 / (ECM curve 39, B1=50000, B2=5000000)
2014-11-20alpertronF-PM1
Factor: 178725604633614588079 / (P-1, B1=3000000, B2=100000000, E=12)
2008-07-21J FeitsmaF
Factor: 263510357129