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

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MnStatusDetails
1070291Composite, with 4 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
28020218391031.4old
1964283666491237.52008-07-16 09:30:57
36374587211857691651.72014-07-09 11:29:30
575092617086308007831571532685.62020-03-09 11:15:03
ECM
DigitsB1Curves
2550000280 / 280
30250000100 / 640
Estimated T-Level: 25.8
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP
StatusDateUserResidueShiftTypeBase
Verified (Factored)2025-09-01Kriesel311A2A53EF9B3EF6013
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-05Oliver KruseF9AF0CE32F84B90B3013
Verified (Factored)2017-10-16Oliver KruseF9AF0CE32F84B90B3103974713
Verified (Factored)2018-01-01ATHF9AF0CE32F84B90B345472613
Verified2020-03-09mrh311A2A53EF9B3EF6420853353
Verified2020-03-09ATH311A2A53EF9B3EF6430205553
History
DateUserTypeResult
2025-09-01PritzPratzPrutzCERT
PRP Certification
CERT proof power = 6
Proof certified good
2025-09-01KrieselC-PRP
311A2A53EF9B3EF6
PRP proof power = 6
PRP: Verified (Factored)
Proof certified good
2024-08-21cramsey87NF-PM1
B1=3000000, B2=26869402560
2020-03-09ATHC-PRP
M1070291/2802021839/196428366649/3637458721185769/57509261708630800783157153 : 311A2A53EF9B3EF6
PRP: Verified
PRP without proof (not generated)
2020-03-09mrhC-PRP
M1070291/2802021839/196428366649/3637458721185769/57509261708630800783157153 : 311A2A53EF9B3EF6
PRP: Verified
PRP without proof (not generated)
2020-03-09TJAOIF-ECM
Factor: 57509261708630800783157153 / (ECM curve 29, B1=250000, B2=25000000)
2018-01-01ATHC-PRP
M1070291/2802021839/196428366649/3637458721185769 : F9AF0CE32F84B90B
PRP: Verified
PRP without proof (not generated)
2017-10-16Oliver KruseC-PRP
M1070291/2802021839/196428366649/3637458721185769 : F9AF0CE32F84B90B
PRP: Verified
PRP without proof (not generated)
2017-10-05Oliver KruseC-PRP
M1070291/2802021839/196428366649/3637458721185769 : F9AF0CE32F84B90B
PRP: Verified
PRP without proof (not generated)
2017-09-28Oliver KruseC-PRP
M1070291/2802021839/196428366649/3637458721185769 : F9AF0CE32F84B90B
PRP without proof (not generated)
2014-07-09TJAOIF
Factor: 3637458721185769
2008-07-16J FeitsmaF
Factor: 196428366649