Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
86539Factored
FactorDigitsBitsDate
14019319823.7old
4386876435258661691858.62009-07-15 00:49:49
7473482127890308571859.42009-07-15 00:49:49
4654749443705446729477817990071621051938125.12022-06-01 16:36:05
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000497 / 1566
Estimated T-Level: 31.6
TF below 2^100 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-09-21Oliver Kruse9A3FC52DF4D466BD3013
Verified (Factored)2017-10-02kkmrkkblmbrbk9A3FC52DF4D466BD3013
Verified (Factored)2017-12-07ATH9A3FC52DF4D466BD34710313
Verified (Factored)2020-04-17Oliver KruseC28D0FEF38939FFC33986353
Verified2022-06-01George WoltmanC28D0FEF38939FFC45679153
P-1 factors
DateFactorB1B2
2022-06-0146547494437054467294778179900716210519100000000070552596864750
History
DateUserTypeResult
2024-01-17masserNF-PP1
Start=6/5, B1=26000000, B2=1378000000
2024-01-16masserNF-PP1
Start=2/7, B1=13000000, B2=689000000
2022-06-01George WoltmanC-PRP
M86539/14019319/438687643525866169/747348212789030857/46547494437054467294778179900716210519 : C28D0FEF38939FFC
PRP: Verified
PRP without proof (small exponent)
2022-06-01George WoltmanF-PM1
Factor: 46547494437054467294778179900716210519 / (P-1, B1=1000000000, B2=70552596864750)
2022-05-16George WoltmanNF-PM1
B1=1000000000
2020-04-17Oliver KruseC-PRP
M86539/14019319/438687643525866169/747348212789030857 : C28D0FEF38939FFC
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M86539/14019319/438687643525866169/747348212789030857 : 9A3FC52DF4D466BD
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M86539/14019319/438687643525866169/747348212789030857 : 9A3FC52DF4D466BD
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M86539/14019319/438687643525866169/747348212789030857 : 9A3FC52DF4D466BD
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M86539/14019319/438687643525866169/747348212789030857 : 9A3FC52DF4D466BD
PRP without proof (not generated)
2016-11-18kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12
2009-07-15Matthias WurtingerF-ECM
Factor: 747348212789030857
2009-07-15Matthias WurtingerF-ECM
Factor: 438687643525866169