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

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MnStatusDetails
243437Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
1947497720.9old
364585857431135.12008-07-21 09:14:47
194378472543413274810494142712994.02016-06-17 12:26:55
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000162 / 1566
Estimated T-Level: 30.5
TF below 2^96 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver Kruse016D1A6078989F6B3013
Verified2017-10-13Oliver Kruse016D1A6078989F6B323509713
Verified2017-11-06kkmrkkblmbrbk016D1A6078989F6B37008113
Verified2020-04-17Oliver Kruse2170CF19189B1752319879253
Verified2024-02-03Wentao Huang2170CF19189B175232846653
History
DateUserTypeResult
2024-02-03Naegi MakotoCERT
PRP Certification
Proof certified good
2024-02-03Wentao HuangC-PRP
M243437/1947497/36458585743/19437847254341327481049414271 : 2170CF19189B1752
PRP proof power = 5
PRP: Verified
Proof certified good
2022-04-10Oliver KruseNF-PM1
B1=30000000, B2=10120247026890
2021-07-23Oliver KruseNF-PM1
B1=30000000, B2=3000000000, E=24
2020-04-17Oliver KruseC-PRP
M243437/1947497/36458585743/19437847254341327481049414271 : 2170CF19189B1752
PRP: Verified
PRP without proof (small exponent)
2017-11-06kkmrkkblmbrbkC-PRP
M243437/1947497/36458585743/19437847254341327481049414271 : 016D1A6078989F6B
PRP: Verified
PRP without proof (small exponent)
2017-10-13Oliver KruseC-PRP
M243437/1947497/36458585743/19437847254341327481049414271 : 016D1A6078989F6B
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M243437/1947497/36458585743/19437847254341327481049414271 : 016D1A6078989F6B
PRP without proof (not generated)
2016-06-17TJAOIF-ECM
Factor: 19437847254341327481049414271 / (ECM curve 69, B1=50000, B2=5000000)
2008-07-21J FeitsmaF
Factor: 36458585743