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

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MnStatusDetails
3519311Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
7038623722.7old
3603844850231238.42008-09-07 19:49:43
216888098308011444.32008-09-30 21:29:22
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
Verified2017-11-08kkmrkkblmbrbkC3E43637F0042A2B355193053
Verified2017-11-24Oliver KruseC3E43637F0042A2B322793653
History
DateUserTypeResult
2022-09-09JossNF-PM1
B1=1000000, B2=233218440
2022-04-26JossNF-PM1
B1=1000000, B2=145208700
2022-02-20JossNF
no factor from 2^67 to 2^68
2020-10-03JossNF-PM1
B1=351931, B2=3519311, E=6
2017-11-24Oliver KruseC-PRP
M3519311/7038623/360384485023/21688809830801 : C3E43637F0042A2B
PRP: Verified
PRP without proof (not generated)
2017-11-08kkmrkkblmbrbkC-PRP
M3519311/7038623/360384485023/21688809830801 : C3E43637F0042A2B
PRP: Verified
PRP without proof (not generated)
2008-09-30markrF
Factor: 21688809830801
2008-09-07Will EdgingtonF
Factor: 360384485023