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
865577Factored
FactorDigitsBitsDate
75250822205719346871962.72008-01-25 16:37:19
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 Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-28Oliver KruseDAEC67051C1C43DA1013
Verified2017-10-14Oliver KruseDAEC67051C1C43DA130247913
Verified2017-12-20ATHDAEC67051C1C43DA126372913
Unverified (Reliable)2020-04-22Oliver KruseDECD3FA94F240F__148322653
History
DateUserTypeResult
2020-04-22Oliver KruseC-PRP
M865577/7525082220571934687 : DECD3FA94F240F__
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-12-20ATHC-PRP
M865577/7525082220571934687 : DAEC67051C1C43DA
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-10-14Oliver KruseC-PRP
M865577/7525082220571934687 : DAEC67051C1C43DA
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-09-28Oliver KruseC-PRP
M865577/7525082220571934687 : DAEC67051C1C43DA
PRP: Unverified (Reliable)
PRP without proof (not generated)
2008-01-25Team_BunduF-ECM
Factor: 7525082220571934687