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
3979201Factored
FactorDigitsBitsDate
1107809558411236.7old
23400338592477736812492271.02018-11-26 07:04:48
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-09-20kkmrkkblmbrbkE4D29D94725223C51013
Verified (Factored)2018-01-03Oliver KruseE4D29D94725223C5119989713
Verified2018-11-28Oliver Kruse38D744F70FF9CFC2239238753
Verified2018-11-29kkmrkkblmbrbk38D744F70FF9CFC22361396953
History
DateUserTypeResult
2022-09-29JossNF-PM1
B1=1000000, B2=113097600
2022-05-11JossNF-PM1
B1=500000, B2=113097600
2022-04-19JossNF-PM1
B1=300000
2022-02-25JossNF
no factor from 2^67 to 2^68
2018-11-29kkmrkkblmbrbkC-PRP
M3979201/110780955841/2340033859247773681249 : 38D744F70FF9CFC2
PRP: Verified
PRP without proof (not generated)
2018-11-28Oliver KruseC-PRP
M3979201/110780955841/2340033859247773681249 : 38D744F70FF9CFC2
PRP: Verified
PRP without proof (not generated)
2018-11-26MarkSF-ECM
Factor: 2340033859247773681249 / (ECM curve 3, B1=50000, B2=5000000)
2018-01-03Oliver KruseC-PRP
M3979201/110780955841 : E4D29D94725223C5
PRP: Verified
PRP without proof (not generated)
2017-09-20kkmrkkblmbrbkC-PRP
M3979201/110780955841 : E4D29D94725223C5
PRP: Verified
PRP without proof (not generated)