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

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MnStatusDetails
347437Composite, with 4 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
1825827289735271547.4old
72814846001261031652.72014-08-20 11:49:19
294168969923720411754.72014-10-03 12:42:03
3629411269093036283832168.32014-10-03 12:42:03
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000165 / 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
Verified2017-09-23Oliver KruseBC54CADA3A63D23D4013
Verified2017-10-13Oliver KruseBC54CADA3A63D23D423066713
Verified2017-12-13ATHBC54CADA3A63D23D49926613
Verified2020-04-18Oliver KruseA03E126AE8AD9A8C432200053
Verified2024-09-14kkmrkkblmbrbkA03E126AE8AD9A8C41193453
History
DateUserTypeResult
2024-09-14PBeamACERT
PRP Certification
Proof certified good
2024-09-14kkmrkkblmbrbkC-PRP
M347437/182582728973527/7281484600126103/29416896992372041/362941126909303628383 : A03E126AE8AD9A8C
PRP proof power = 5
PRP: Verified
Proof certified good
2024-09-12yuriy_5-1NF-PM1
B1=12000002, B2=1719523505700
2023-11-16USAFSSNF-PM1
B1=1350000, B2=5367308100
2022-02-06Lisander ViaeneNF-PM1
B1=50000
2020-04-18Oliver KruseC-PRP
M347437/182582728973527/7281484600126103/29416896992372041/362941126909303628383 : A03E126AE8AD9A8C
PRP: Verified
PRP without proof (small exponent)
2017-12-13ATHC-PRP
M347437/182582728973527/7281484600126103/29416896992372041/362941126909303628383 : BC54CADA3A63D23D
PRP: Verified
PRP without proof (small exponent)
2017-10-13Oliver KruseC-PRP
M347437/182582728973527/7281484600126103/29416896992372041/362941126909303628383 : BC54CADA3A63D23D
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M347437/known_factors : BC54CADA3A63D23D
PRP without proof (not generated)
2014-10-03TJAOIF-ECM
Factor: 362941126909303628383 / (ECM curve 10, B1=50000, B2=5000000)
2014-10-03TJAOIF-ECM
Factor: 29416896992372041 / (ECM curve 1, B1=50000, B2=5000000)
2014-08-20TJAOIF
Factor: 7281484600126103